1. Contribution a la connaissance de la composition des sporodermes chex les Cycladales (Prespermaphytes). Etude en microscopie electronique transmission (M.E.T.) et a balayage (M.E.B.);Audran;Palaeontographica,1977
2. A theory of angiosperm evolution;Axelrod;Evolution,1952
3. How old are the angiosperms?;Axelrod;Am. J. Sci.,1961
4. Late Hauterivian angiosperm pollen from the Helez Formation, Israel;Brenner,1984
5. Paleotropical evolution of the Magnoliidae in the Lower Cretaceous of northern Gondwana;Brenner;Am. J. Bot.,1987