2
by Valette, Alain
Published 2002
Birkhäuser Basel

3
by Cherix, Pierre-Alain, Jolissaint, Paul, Valette, Alain, Cowling, Michael
Published 2001
Birkhäuser Basel

4
by Bekka, M. Bachir, La Harpe, Pierre de, Valette, Alain
Published 2008
Cambridge University Press