Gurevich P.

Russian Mathematical Surveys. Vol. 63. 2008. P.. 565-566

Proceedings of the Steklov Institute of Mathematics. Vol. 260. 2008. P.. 157-171

Mathematical Notes. Vol. 83. 2008. P.. 162-179

Doklady Mathematics. Vol. 77. 2008. P.. 27-30

Doklady Mathematics. Vol. 76. 2007. P.. 891-895

Journal of Mathematical Sciences. Vol. 143. 2007. P.. 3293-3302

Advances in Differential Equations. Vol. 11. 2006. P.. 305-360

Proceedings of the Steklov Institute of Mathematics. Vol. 255. 2006. P.. 108-126