L. Lubyako
发表
William Bin,
V. Erckmann,
W. Kasparek,
2008
.
V. Erckmann,
F. Purps,
Walter Kasparek,
2009
.
V. Erckmann,
W. Kasparek,
F. Purps,
2009
.
V. Erckmann,
W. Kasparek,
W As Team,
1998
.