I've run across a conundrum. There is a Piano Trio in e minor (theme and variations in one movement) ascribed to Georgy Catoire, Op. 31, performed by Alexander Goldenweiser, Leonid Kogan, and Mstislav Rostropovich. It is an amazing piece of chamber music, and one I highly recommend.
http://www.cduniverse.com/search/xx/music/pid/1196882/a/catoire,+goldenweiser%3A+piano+trios+%2F+rostropovich,+et+al.htm
(http://www.cduniverse.com/search/xx/music/pid/1196882/a/catoire,+goldenweiser%3A+piano+trios+%2F+rostropovich,+et+al.htm)
However, according to IMSLP, and elsewhere, Catoire's Op. 31 is a Piano Quartet in a minor and lists only one Piano Trio, Op. 14. I happen to have all of Catoire's chamber works, including these, and the piano trio in e minor is a different piece than all other known Catoire works. Any clarification from members?
On this disc the Piano Trio in E minor op 31 is Goldenweiser's Piano Trio, not Catoire's.
ah, mystery solved. Thanks.