Иващук В.Д.

Gravitation and Cosmology. Том 12. 2006. С. 169-172

Gravitation and Cosmology. Том 11. 2005. С. 345-353

Gravitation and Cosmology. Том 9. 2003. С. 50-54

Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics. Том 543. 2002. С. 98-106

Journal of Mathematical Physics. Том 43. 2002. С. 6016-6023

Gravitation and Cosmology. Том 7. 2001. С. 308-310

General Relativity and Gravitation. Том 32. 2000. С. 757-759