Sovremennye problemy gravita︠t︡sii : materialy Vseso︠i︡uznogo soveshchani︠i︡a 3-7 i︠i︡ul︠i︡a 1990 goda - Denisov, V. I.; Stepanov, Vladimir Evgenʹevich; Egorova, V. P. (︠I︡Akutskiĭ nauch. ︠t︡sentr SO AN SSSR, 1991)