author = { Clark, Benton C. },

title = { Barriers to natural interchange of biologically active material between Earth and Mars },

publisher = {Springer Science and Business Media LLC},

isbn = {0169-6149},

isbn = {1573-0875},

keywords = { Space and Planetary Science , Ecology, Evolution, Behavior and Systematics , General Medicine },

year = {1986},

url = { http://slubdd.de/katalog?TN_libero_mab2 }