A nonlocal boundary value problem with constant coefficients for the multidimensional second order equation of mixed type of the second kind
Sirojiddin Z. Dzhamalov

This publication is cited in the following articles:

1. S. G. Pyatkov, “Boundary value and inverse problems for some classes of nonclassical operator-differential equations”, Siberian Math. J., 62:3 (2021), 489–502