Golovashkin A.I. , Mitsen K.V. , Ivanenko O.M. , Danilov V.A. , Leitus G.M. , Perepechko I.I. , Karpinskii O.G. , Shamray V.F. Anomalous behavior of the elastic сharacteristics of YBa_2Cu_3O_7 near Tc. Novel superconductivity. Proc. of the intern. workshop. June 22-26, 1987 / Ed.S.A.Wolf, V.Z.Kresin , с. C.883-888 Golovashkin A.I. , Mitsen K.V. , Ivanenko O.M. , Danilov V.A. , Leitus G.M. , Perepechko I.I. , Karpinskii O.G. , Shamray V.F. Anomalous behavior of elastic characteristics YBa_2Cu_3O_7 near Tc. Pr. FIAH , N305 , с. 15 p. , 01.1987