[Ba] Barbanti L.: 
Linear Volterra-Stieltjes integral equations and control. Lecture Notes in Mathematics 1017, Springer-Verlag (1983), 67-72. 
MR 0726569 | 
Zbl 0537.49021[Br] Bryan R. N: A nonhomogeneous linear differential system with interface conditions and their adjoints. Proc. A.M.S. 22 (1969), 270-276.
[Fi] Fichmann L.: Volterra-Stieltjes Integral Equations and Equations of the Neutral Type. (in Portuguese), Thesis. University of Sao Paulo (1984).
[Fra] Fraňková D.: 
Regulated functions. Math. Boh. (Časopis pěst. mat.) 116 (1991), 20-59. 
MR 1100424[Ha] Halanay A.: 
Optimal control of periodic solutions. Rev. Roum. Math. Pures et Appl. 14 (1974), 3-16. 
MR 0344968 | 
Zbl 0276.49012[Hi] Hildebrandt T. H.: 
Introduction to the Theory of Integration. Academic Press, New York-London, 1963. 
MR 0154957 | 
Zbl 0112.28302[Hö1] Hönig Ch. S.: 
The adjoint equation of a linear Volterra-Stieltjes integral equation with a linear constraint. Lecture Notes in Mathematics 957, Springer-Verlag (1982), 118-125. 
MR 0679143[Hö2] Hönig Ch. S.: 
Volterra-Stieltjes integral equations. Functional Differential Equations and Bifurcation, Proceedings of the Sao Carlos Conference 1979 (Lecture Notes in Mathematics 799). Spгinger-Verlag, 173-216. 
MR 0585488[Ka] Kaltenborn H. S.: 
Linear functional operations on functions having discontinuities of the first kind. Bulletin A.M.S. (1934), 702-708. 
MR 1562957 | 
Zbl 0010.16905[Ku1] Kurzweil J.: 
Generalized ordinary differential equations and continuous dependence on a parameter. Czech. Math. J. 7 (82) (1957), 418-449. 
MR 0111875 | 
Zbl 0090.30002[Ku2] Kurzweil J.: 
Nichtabsolute konvergente Integrale. BSB B. G. Teubner Verlagsgesselschaft, Leipzig, 1980. 
MR 0597703[La] Lando Yu. K.: 
Controllable integro-differential operators. (in Russian). Diff. Uravn. 9 (1973), 2227-2230. 
MR 0333772[Ma] Marchiò C: (M, N, F)-controllabilità completa. Questioni di controllabilità.  Istituto U. Dini, Firenze (1973/2), 14-26.
[Rol] Rolewicz S.: Functional Analysis and Control Analysis (Lineaг Systems). PWN-Polish Scientific Publishers and D. Reidel, Warszawa and Dordrecht, 1987.
[Rus] Russell D. L.: 
Mathematics of Finite-Dimensional Control Systems (Theory and Design). (LNPAM 43). M. Dekker, New York and Basel, 1979. 
MR 0531035 | 
Zbl 0408.93002[Sa] Saks S.: 
Theory of the Integral. Monografie Matematyczne, Warszawa-Lwów, 1937. 
Zbl 0017.30004[Sch1] Schwabik Š.: 
Generalized  Differential Equations (Fundamental  Results). Rozpravy ČSAV, řada MPV, 95 (6), Academia, Praha, 1985. 
MR 0823224 | 
Zbl 0594.34002[Sch2] Schwabik Š.: 
On the relation between Young's and Kurzweil's concept of Stieltjes integral. Časopis pěst. mat. 98 (1973), 237-251. 
MR 0322113 | 
Zbl 0266.26006[SchЗ] Schwabik Š.: 
Differential equations with interface conditions. Časopis pěst. mat. 105 (1980), 391-408. 
MR 0597916 | 
Zbl 0453.34008[ST] Schwabik Š., Tvrdý M.: 
Boundary value problems for generalized  linear differential equations. Czech. Math. J. 29 (104) (1974), 451-477. 
MR 0536070[STV] Schwabik Š., Tvrdý M., Vejvoda O.: 
Differential and Integral Equations: Boundary Value Problems and Adjoints. Academia and D. Reidel, Praha and Dordrecht, 1979. 
MR 0542283[T1] Tvrdý M.: 
Boundary value problems for linear generalized differential equations and their adjoints. Czech. Math. J. 23 (98) (1973), 183-217. 
MR 0320417[T2] Tvrdý M.: 
Boundary value problems for generalized linear integrodifferential equations with left-continuous solutions. Časopis pěst. mat. 99 (1974), 147-157. 
MR 0405041[TЗ] Tvrdý M.: 
Regulated functions and the Perron-Stieltjes integral. Časopis pěst. mat. 114 (1989), 187-209. 
MR 1063765[We] Wexler D.: 
On boundary value problems for an ordinary linear differential system. Аnn. Mat. pura ed appl. 80 (1968), 12З-1З4. 
MR 0247242[Ze] Zettl A.: 
Аdjoint and self-adjoint boundary value problems with interface conditions. Јourn. Аppl. Mat. 16 (1968), 851-859. 
MR 0234049