1. Five new species of Pythium (Peronosporomycetidae);Ali-shtayeh;Botanical Journal of the Linnean Society,1985
2. Champignons aquatiques du Sahara Algerien: Pythium Pringsheim;Paul;Cryptogamie-Mycologie,1982
3. Aquatic fungi of Algeria: some species of Saprolegniaceae and Pythiaceae;Paul;Nova Hedwigia,1983
4. A new species of Pythium from Algerian waters;Paul;Hydrobiologia,1986
5. An aquatic species, Pythium toruloides sp.nov., from Algeria;Paul;Transactions of the British Mycological Society,1986