[1] NEUMAN F.: 
Transformations and canonical forms of functional-differential equations. Proc. Roy. Soc. Edinburgh Sect. A 115 (1990), 349-357. 
MR 1069527[2] GROVE E. A.: 
Sufficient conditions for oscillation and nonoscillation of neutral equations. J. Differential Equations 68 (1987), 373-382. 
MR 0891334 | 
Zbl 0616.34063[3] GRAMMATIKOPOULOS M. K.-SFICAS Y. G.-STAVROULAKIS I. P.: 
Necessary and sufficient conditions for oscillations of neutral equations with several coefficients. J. Differential Equations 76 (1988), 294-311. 
MR 0969427 | 
Zbl 0669.34069[4] ARINO O.: 
Necessary and sufficient condition for oscillation of a neutral differential system with several delays. J. Differential Equations 81 (1989), 98-105. 
MR 1012201 | 
Zbl 0691.34054[5] NEUMAN F.: 
Simultaneous solutions of a system of Abel equations and differential equations with several deviations. Czechoslovak Math. J. 32(107) (1982), 488-494. 
MR 0669790 | 
Zbl 0524.34070[6] NEUMAN F.: 
On solutions of the vector functional equation $y(\xi(x)) = f(x)Ay(x)$, Aequationes Math. 16 (1977), 245-257. 
MR 0467061[7] NEUMAN F.: 
On transformations of differential equations and systems with deviating argument. Czechoslovak Math. J. 31(106) (1981), 87-90. 
MR 0604115 | 
Zbl 0463.34051[8] NEUMAN F.: 
Global theory of ordinary linear homogeneous differential equations in the real domain I; II. Aequationes Math. 33; 34 (1987), 123-149; 1-22. 
MR 0915867[9] TRYHUK V.: 
The most general transformation of homogeneous linear differential retarded equations of the first order. Arch. Math. (Brno) 16 (1980), 225-230. 
MR 0594470 | 
Zbl 0448.34073[10] TRYHUK V.: 
The most general transformation of homogeneous linear differential retarded equations of the nth order. Math. Slovaca 1 (1983), 15-21. 
MR 0689272[11] TRYHUK V.: 
Pointwise transformations of linear functional differential equations of the nth order. (To appear). 
MR 0412523