Bibliografía (21 obras)
Götterdämmerung im Himalaya
2006
Insight Pocket Guide Sardinia
2003
Chios, Lesbos et Samos
Sardinien
2001
Nepal
2000
Sardinia
1998
Prague
1996
1995
Südtirol
Insight Pocket Guides Sardinia
1994
Insight Guides
1993
Italian Alps, South Tyrol
1992
Yemen Insight Guide (Insight Guides)
1991
Yemen
1990
1989
