22 ấn phẩm có sẵn
2006, YAKOV ALBER, IRINA RYAZANTSEVA
1976, Tosio Kato
2009, Vladimir V. Vasin, Ivan I. Eremin
2009, MaryGeorge L. Whitney - Georgia State University, mwhitney1@student.gsu.edu
1984, Y.A. Morozo
2005, Alexander. G. Ramm
