The existence of a periodic solution of a parabolic equation with the Bessel operator, Aplikace Matematiky, vol.29, issue.1, pp.40-44, 1984. ,
Pham Ngoc Dinh, Periodic solutions of a nonlinear parabolic equation involving Bessel's operator, Computers Math, Applic, vol.25, pp.11-18, 1993. ,
On a nonlinear boundary value problem for a nonlinear ordinary differential operator in weighted Sobolev spaces, Z. Anal ,
On one problem of the periodic heat flow in the infinite cylinder, Dokl. Akad. Nauk. Arm. SSR, p.48, 1969. ,
On a nonlinear boundary value problem with a mixed nonhomogeneous condition, Vietnam J. Math, vol.26, pp.301-309, 1998. ,
A mathematical model for the evaporation of a liquid fuel droplet inside an infinite vessel, Nonlinear Analysis and Applications: to V. Lakshmikantham on his 80th. birthday, pp.117-140, 2003. ,