- M. SHARIF, SUMAIRA TAJ, “ENERGY CONTENTS OF GRAVITATIONAL WAVES IN TELEPARALLEL GRAVITY”, Mod. Phys. Lett. A, 25, № 03, 2010, 221
- J Podolský, J B Griffiths, “Expanding impulsive gravitational waves”, Class. Quantum Grav., 16, № 9, 1999, 2937
- G A Alekseev, J B Griffiths, “Gravitational waves with distinct wavefronts”, Class. Quantum Grav., 14, № 10, 1997, 2869
- G A Alekseev, J B Griffiths, “Exact solutions for gravitational waves with cylindrical, spherical and toroidal wavefronts”, Class. Quantum Grav., 13, № 8, 1996, 2191
- C. Barrabès, G. F. Bressange, P. A. Hogan, “Some physical consequences of abrupt changes in the multipole moments of a gravitating body”, Phys. Rev. D, 55, № 6, 1997, 3477