The distinguished Petersburg journal ZVEZDA )#4, 2003 carries two items of interest:

1) pp.190-205--Gennady Barabtarlo. "Razreshennye dissonansy" re variants of PNIN

2) pp. 213ff--Igor' Sukhin. "Kler, Mashen'ka, nostal'gia (1930. 'Vecher u Kler' G. Gazdanova)." A contrastive look at the Gazdanov's "AN Evening at Claire's" and VN's Mary"