Biostratigraphy : microfossils and geological time /
Correlative Neuroanatomy.
Plankton ecology : succesion in plankton communities /
Belgium - Wallonia /
Belgium : long united, long divided /
Planktón gravitácie /
Alsó miocén vitakérdések /
Plankton plůdkových rybníků /
Das Süszwasser - Plankton.
Measurements and correlation /
Hollandia, Belgium, Luxemburg autótérképe /
Das Planktons des Meeres.
Northern lights romantic piano pieces /
Northern Spiš by bicycle. /
A northern light /
The northern light : from mythology to space reseaech /
Functional morphology of the miocene hominoid foot /
Magyarországi miocén-mediterrán csigák határozója.
World correlations for permian marine faunas /
Deposit systems.
Biostratigraphy and interreg. correlation of the "miocene" deposits of northern Belgium Based on planktonic foramini... /