Simplicius Cilicius, ca. 490-ca. 560. |
On Aristotle Physics 7 / Simplicius ; translated by Charles Hagen |
London : Duckworth, 1994. |
Hawrylewicz, Ervin J. |
Response of microorganisms to a simulated Martian environment / Ervin J. Havrylewicz, Charles A. Hagen and Richard Ehrlich |