Comment from March 2016 by "quasi-libet":

> Finally, I have found out the end of the text on page 129 of “Transactions of the Oceanographical Institute”.

“The scientific reconnaissance vessel “Slava-9” began his regular 13th cruise with the “Slava” Antarctic whaling fleet on 22 October 1958 … On 27 November she got to Bouvet Island. A group of sailors landed which couldn’t leave the island in time because of worsened weather and stayed on it about 3 days. The people were withdrawn only by helicopter on 29 November”.

The mystery is resolved. The answer turned out to be a quite prosaic one. I am even feeling kind of regret for it.