[1] S.S. Antman: 
Nonlinear Problems of Elasticity. Applied Math. Sci. 107, Springer-Verlag, New York, 1995.  
MR 1323857 | 
Zbl 0820.73002[2] G. Capriz: 
Continua with Microstructure. Springer Tracts in Natural Philosophy, 35, 1989.  
MR 0985585 | 
Zbl 0676.73001[3] H. Cohen C.N. DeSilva: Nonlinear Theory of Elastic Directed Surfaces. J. Math. Phys. 7 (6) (1967), 960-966. 
[4] L.A. Cordero C.T.J. Dodson M. de León: Differential Geometry of Frame Bundles. Mathematics and Its Applications, Kluwer, Dordrecht, 1989. 
[5] E. Cosserat F. Cosserat: Théorie des corps Déformables. Hermann, Paris, 1909. 
[6] M. de León M. Epstein: 
On the integrability of second order $G$-structures with applications to continuous theories of dislocations. Reports on Mathematical Physics, 33 (3) (1993), 419-436.  
MR 1277160[7] M. de León M. Epstein: 
Material bodies of higher grade. C. R. Acad. Sc. Paris, 319, Sér. I, (1994), 615-620.  
MR 1298293[8] M. de León M. Epstein: 
The geometry of uniformity in second-grade elasticity. Acta Mechanica, 114 1 (1996), 217-224.  
MR 1375732[9] M. de León P.R. Rodrigues: 
Methods of Differential Geometry in Analytical Mechanics. North-Holland Math. Ser. 152, Amsterdam, 1989.  
MR 1021489[10] M. Elzanowski M. Epstein: 
On the symmetry group of second-grade materials. Int. J. Non-Linear Mechanics, 27, 4 (1992), 635-638.  
MR 1175083[11] M. Elzanowski S. Prishepionok: 
Locally Homogeneous Configurations of Uniform Elastic Bodies. Reports on Mathematical Physics, 31 (1992), 229-240.  
MR 1232644[12] M. Elzanowski S. Prishepionok: Connections on higher order frame bundles. Proceedings Colloquium on Differential Geometry, July 25-30, 1994, Debrecen, Hungary. 
[13] M. Elzanowski: Mathematical Theory of Uniform Elastic Structures. Monografie, Politechnika Swietokrzyska, Kielce, 1995. 
[14] M. Epstein M. de León: 
The Differential Geometry of Cosserat Media. New Developments in Differential Geometry (Debrecen, 1994), Math. Appl., 350, Kluwer Acad. Publ., Dordrecht, 1996, pp. 143-164.  
MR 1377280[15] M. Epstein M. de León: 
Homogeneity conditions for generalized Cosserat media. Journal of Elasticity, 43 (1996), 180-201.  
MR 1415542[16] M. Epstein M. de León: Differential geometry of continua with structure. Proceedings 8th International Symposium “Continuum Models and Discrete Systems”, Varna, Bulgaria, June 11-16, 1995. World Scientific, Singapore, 1996, pp. 156-163. 
[17] M. Epstein M. de León: 
Geometric characterization of the homogeneity of continua with microstructure. Proceedings Third Meeting on Current Ideas in Mechanics and Related Fields, Segovia, June 19-23, 1995. Extracta Mathematicae 11 (1) (1996), pp. 116-126.  
MR 1424749[18] M. Epstein M. de León: Geometrical Theory of Uniform Cosserat Media. Preprint IMAFF-CSIC, 1996. 
[19] M. Epstein M. de León: Shell theory and material uniformity. V Pan American Congress of Applied Mechanics, Mayagüez, Puerto Rico, January 2-6, 1997. 
[20] M. Epstein M. de León: 
Uniformity and homogeneity of deformable surfaces. to appear in C. R. Acad. Sci. Paris, (1996). 
MR 1375733[21] M. Epstein M. de León: 
On uniformity of shells. Preprint IMAFF-CSIC, 1996.  
MR 1375733[23] J.L. Ericksen: 
Symmetry transformations for thin elastic shells. Arch. Rational Mech. Anal. 47 (1972) 1-14.  
MR 0359504 | 
Zbl 0242.73045[24] A.C. Eringen, Ch.B. Kafadar: 
Polar Field Theories. Continuum Physics, Ed. A. Cemal Eringen, vol. IV, Part I, pp. 1-73, Academic Press, New York, 1976.  
MR 0468445[25] A. Fujimoto: 
Theory of $G$-structures. Publications of the Study Group of Geometry, Vol. I. Tokyo, 1972.  
MR 0348664 | 
Zbl 0235.53035[26] A.E. Green P.M. Naghdi W.L. Wainwright: 
A General Theory of a Cosserat Surface. Arch. Rational Mech. Anal. 20 (1965) 287-308.  
MR 0183156[27] A.E. Green P.M. Naghdi: 
Some remarks on the linear theory of shells. Q. J. Mech. Appl. Math. 18 (1965) 257-276.  
MR 0189334[28] S. Kobayashi K. Nomizu: 
Foundations of Differential Geometry. vol. I, Interscience Publishers, New York, 1963.  
MR 0152974[29] I. Kolář: 
Generalized $G$-structures and $G$-structures of higher order. Boll. Un. Mat. Ital. (4) 12, no. 3, suppl (1975), 245-256.  
MR 0445424[30] I. Kolář P.W. Michor J. Slovák: 
Natural Operations in Differential Geometry. Springer-Verlag, Berlin, 1993.  
MR 1202431[31] I. Kolář: 
Canonical forms on the prolongations of principal fibre bundles. Rev. Roumaine Math. Pures Appl. 16 (1971), 1091-1106.  
MR 0301668[32] P. Libermann: 
Sur la géométrie des prolongements des spaces fibrés vectoriels. Ann. Inst. Fourier, 14 (1) (1964), 145-172.  
MR 0167925[33] P. Libermann: 
Surconnexions et connexions affines spéciales. C. R. Acad. Sc. Paris, 261 (1965), 2801-2804.  
MR 0190869 | 
Zbl 0129.36603[34] P. Libermann: Connexions d’ordre supérieur et tenseur de structure. Atti del Convegno Int. di Geometria Differenziale, Bologna, 28-30, September 1967, Ed. Zanichelli, Bologna, 1967, 1-18. 
[35] P. Libermann: 
Sur les groupoides différentiables et le “presque parallelisme”. Instituto Nazionale di Alta Matematica, Symposia Mathematica, X (1972), 59-93.  
MR 0370668 | 
Zbl 0265.53030[37] J.E. Marsden: 
Lectures on Geometric Methods in Mathematical Physics. CBMS-NSF Regional Conference Series in Applied Mathematics, SIAM, Philadelphia, 1981.  
MR 0619693 | 
Zbl 0485.70001[38] J.E. Marsden T.J.R. Hughes: Mathematical Foundations of Elasticity. Prentice Hall, New Jersey, 1983. 
[39] G.A. Maugin: 
The Method of Virtual Power in Continuum Mechanics-Applications to Coupled Fields. Acta Mechanica, 30 (1980), 1-70.  
MR 0563729[41] G.A. Maugin: 
On the Structure of the Theory of Polar Elasticity. Preprint 1996.  
MR 1639983[42] P. Molino: 
Théorie des $G$-Structures: Le Probléme d’Equivalence. Lecture Notes in Math., 588, Berlin-New York, Springer, 1977.  
MR 0517117 | 
Zbl 0357.53022[43] W. Noll: 
Materially Uniform Simple Bodies with Inhomogeneities. Arch. Rational Mech. Anal., 27, (1967), 1-32.  
MR 0225530[44] V. Oproiu: 
Connections in the semiholonomic frame bundle of second order. Rev. Roum. Math. Pures et Appl., XIV, 5 (1969), 661-672.  
MR 0248671 | 
Zbl 0182.24104[45] J.F. Pommaret: 
Lie Pseudogroups and Mechanics. Mathematics and Its Applications, Gordon and Breach, New York, 1988.  
MR 0954613 | 
Zbl 0677.58003[46] R.A. Toupin: 
Elastic materials with couple-stresses. Arch. Rational Mech. Anal. 11, (1962), 385-414.  
MR 0144512 | 
Zbl 0112.16805[47] R.A. Toupin: 
Theories of Elasticity with Couple-stress. Arch. Rational Mech. Anal. 17, (1964), 85-112.  
MR 0169425 | 
Zbl 0131.22001[48] C. Truesdell W. Noll: 
The Non-Linear Field Theories of Mechanics. Handbuch der Physik, Vol. III/3, Berlin-New York, Springer, 1965.  
MR 0193816[49] C.C. Wang C. Truesdell: 
Introduction to rational elasticity. Noordhoff International Publishing, Leyden, 1973.  
MR 0468442[50] C.C. Wang: 
On the Geometric Structures of Simple Bodies, a Mathematical Foundation for the Theory of Continuous Distributions of Dislocations. Arch. Rational Mech. Anal., 27, (1967), 33-94.  
MR 0229420 | 
Zbl 0187.48802[51] C.C. Wang: 
Material Uniformity and Homogeneity in Shells. Arch. Rational Mech. Anal. 47 (1972) 343-368.  
MR 0359505 | 
Zbl 0266.73054[52] P.Ch. Yuen: 
Higher order frames and linear connections. Cahiers de Topologie et Géometrie Différentielle, XII, 3 (1971), 333-371.   
MR 0307102 | 
Zbl 0222.53033