CHARACTERISTICS OF PHASE DIFFRACTION LATTICES, OBTAINED BY AN IONIC EXCHANGE METHOD Article KORNYUSHENKO G.V., OSOVITSKII A.N. ZHURNAL TEKHNICHESKOI FIZIKI / Technical Physics. The Russian Journal of Applied Physics. MEZHDUNARODNAYA KNIGA / ФТИ им. А.Ф.Иоффе.. Vol. 56. 1986. P. 1757-1763
SPATIAL VARIATIONS OF THE GRAVITATIONAL CONSTANT Article LYAKHOVETS V.D. FIZIKA ZEMLI. MEZHDUNARODNAYA KNIGA / Федеральное государственное бюджетное учреждение "Российская академия наук". 1986. P. 98-99