1
Published 2000
2
by Ashby
Published 2013
3
by Banach
Published 2009
4
Published 1995
5
Published 1993
6
by STOECKER
Published 1982
7
by Ashby
Published 1998
8
by Ashby
Published 1996
9
by ERTAS
Published 1996
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10
by Banach
Published 2009