SELF-GRAVITATING STRINGLIKE CONFIGURATIONS FROM NONLINEAR ELECTRODYNAMICS СтатьяBronnikov K.A., Shikin G.N., Sibileva E.N.Gravitation and Cosmology. Том 9. 2003. С. 169-175
GENERALIZED PP-WAVE SOLUTIONS ON PRODUCTS OF RICCI-FLAT SPACES СтатьяIvashchuk V.D.Gravitation and Cosmology. Том 9. 2003. С. 146-152