Unknown
Slabunov, A. I.
;
Lobach-Zhuchenko, S. B.
;
Bibikova, E. V.
;
[et al.]
Sorjonen-Ward, P.
;
Balangansky, V. V.
;
Volodichev, O. I.
;
Shchipansky, A. A.
;
Svetov, S. A.
;
Chekulaev, V. P.
;
Arestova, N. A.
;
Stepanov, V. S.
Geological Society of London