March - April 1993
Excursion
on soil and landscape evolution of the country comprising stays in Sydney,
Brisbane, Cairns, Mt. Isa, Darwin, Alice Springs, Ayers Rock, Kings Canyon,
Canberra, and Adelaide.
March - April
1998
Congress
of the International Humic Substances Society, Adelaide.
Excursion
on soil and landscape evolution of western Australia.comprising stays in Perth
and its surrounding deserts.
Some
impressions of this beautiful country: