On the Cauchy problem for one quasilinear equation. (Russian) Differentsial’nye Uravneniya 17 (1981), No. 1, 46-49; English transl.: Differ. Equations 17 (1981), 30-33.
Cauchy and Darboux problems in the large for a class of nonlinear equations. (Russian) Analytical methods in the theory of elliptic equations, Work Collect., Novosibirsk, 1982, 121-128.
On the solvability of the Cauchy problem in the large for some quasilinear hyperbolic equation with parabolic degeneration. (Russian) Soobshch. Akad. Nauk Gruz. SSR 105 (1982), No. 2, 257-260.
Goursat's characteristic problem in the large for a class of quasilinear hyperbolic equations. (Russian) Differentsial’nye Uravneniya 19 (1983), No. 1, 30-37; English transl.: Differ. Equations 19 (1983), 25-31.
On global solvability of an analog of the Goursat problem for a class of quasilinear hyperbolic equations. (Russian) Trudy Tbiliss. Mat. Inst. Razmadze 75 (1984), 37-45.
The Darboux problem in the large for a class of quasilinear hyperbolic equations. (Russian) Differentsial’nye Uravneniya 21 (1985), No. 1, 46-50; English transl.: Differ. Equations 21 (1985), 36-40.
On global solvability of initial and characteristic problems for one class of quasilinear hyperbolic equations. Mathematical analysis, Teubner-Texte Math. 79 (1985), 150-169.
On the Cauchy problem in the large for a class of quasilinear hyperbolic equations. (Russian) Trudy Tbiliss. Mat. Inst. Razmadze 81 (1986), 50-54.
Global Goursat characteristic problem for one class of quasilinear hyperbolic equations. Mixed type equations, Teubner-Texte Math. 90 (1986), 136-141.
Some variants of the Frankl’ problem for the Lavrent’ev-Bitsadze equation in a half-plane. (Russian) Differentsial’nye Uravneniya 25 (1989), no. 9, 1614-1618; English. transl.: Differ. Equations 25 (189).
On some variants of Frankl’s problem for the Lavrent’ev-Bitsadze equation in a half-plane. Topics in mathematical analysis, 478-500, Ser. Pure Math., 11, World Sci. Publishing, Teaneck, NJ, 1989.
On the Cauchy and Goursat problems on the composite curves for the generalized Mangeron equation. Rep. Enlarged Sess. Semin. I. Vekua Inst. Appl. Math. 8 (1993), No. 1, 38-40.
The global Cauchy problem for quasilinear hyperbolic
equations 
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The global Cauchy problem for quasilinear hyperbolic equations (Russian). Proc. Razmadze Math. Inst. 110 (1994), 83-89.
On a Darboux problem for a third order hyperbolic equation with multiple characteristics. Georgian Math. J. 2 (1995), No. 5, 469-490.
The Darboux type problem in a dihedral angle for third order equations of hyperbolic type. Rep. Enlarged Sess. Semin. I. Vekua Inst. Appl. Math. 10 (1995), No. 1, 39-42.
Spatial problem of Darboux type for one model equation of third order. Georgian Math. J. 3 (1996), No. 6, 547-564.
Darboux type problem for a third order equation with dominant lower terms. (Russian) Differentsial’nye Uravneniya 32 (1996), No. 4, 523-535; English transl.: Differ. Equations 32 (1996), No. 4, 524-537.
The first mixed problem for pseudoparabolic equations on a plane. Bull. Georgian Acad. Sci. 154 (1996), No. 2, 177-180.
General Darboux type problem for a third order equations with dominated lower terms. Bull. Georgian Acad. Sci. 154 (1996), No. 3, 344-347.
Darboux and Goursat type problems in the trihedral angle for hyperbolic type equations of third order. Rend. Semin. Mat. Univ. Padova 98 (1997), 107-123.
On the boundary value problem in a dihedral angle for normally hyperbolic systems of first order. Georgian Math. J. 5 (1998), No. 2, 121-138.
On the boundary value problems for normally hyperbolic systems of first order equations in the space. Rend. Mat. Appl. (7) 18 (1998), No. 3, 497-528.
Of the Darboux type problem in the trihedral angly for hyperbolic type equations of third order. (Russian) Izv. Vyssh. Uchebn. Zaved. Mat. 442 (1999), No. 3, 22-30.
The Goursat problem for hyperbolic systems of second order with nonsplited principal parts. (Russian) Differentsial’nye Uravneniya 38 (2002), No. 1, 87-92; English transl.: Differ. Equations 38 (2002), No.1, 93-98.
A general boundary value problem of the Darboux type in the curvelinear angular domains for the third order equations with dominated lower terms. (Russian) Sibirsk. Mat. Zh. 43 (2002), No. 2, 295-313; English transl.: Siberian Math. J. 43 (2002), No. 2, 235-250.
A Darboux type problem in a dihedral angle for some classes of third order equations. (Russian) Izv. Vyssh. Uchebn. Zaved. Mat. 492 (2003), No. 5, 9-20.
Riemann function for hyperbolic equations and systems of higher order with dominates lower terms. (Russian) Differentsia’nye Uravneniya 39 (2003), No. 9, 1-13; English transl.: Differ. Equations 39 (2003).
Influence of lower terms on the correctness of the formulation of characteristic problems for third order hyperbolic equations. (Russian) Mat. Zametki 74 (2003), No. 4.