For citations:

Romanenko F.A., Lukashov A.A., Shilova O.S. CATASTROPHIC GRAVITATIONAL PROCESSES ON THE NORTH OF THE EUROPEAN PART OF RUSSIA AND AN ATTEMPT OF THEIR ABSOLUTE AGEDATIN. Geomorfologiya. 2011;(1):87-94. (In Russ.) https://doi.org/10.15356/0435-4281-2011-1-87-94