2
Published 2000
Book
7
Published 1980
Book
8
Thesis Manuscript
10
by Čerkasov, Gelij Nikolajevič
Published 1972
Book
11
by Clayton, Joseph
Published 1913
Book
12
Published 2001
Book
15
17
by Albrecht, William
Published 1986
Book
18
Book
19
by Barberis, Peter, May, Timothy
Published 1993
Book
20
Published 2002
Book