1. P. Welander, Ark. Fys. 7, 507 (1954).
2. C. Cercignani, Transp. Theory Stat. Phys. 6(1), 29 (1977).
3. Y. Sone, J. Phys. Soc. Jpn. 45, 315 (1978).
4. A. V. Latyshev, Prikl. Mat. Mekh. 54, 581 (1990).
5. A. V. Latyshev and A. A. Yushkanov, Izv. Ross. Akad. Nauk, Mekh. Zhidk. Gaza, No. 1, 163 (1992).