Engel, Michael H.; Nagy, Bartholomew. Distribution and enantiomeric composition of amino acids in the Murchison meteorite. Nature. 1982-04-29, 296 (5860): 837–840. Bibcode:1982Natur.296..837E. doi:10.1038/296837a0.
Bada, Jeffrey L.; Cronin, John R.; Ho, Ming-Shan; Kvenvolden, Keith A.; Lawless, James G.; Miller, Stanley L.; Oro, J.; Steinberg, Spencer. On the reported optical activity of amino acids in the Murchison meteorite. Nature. 1983-02-10, 301 (5900): 494–496. Bibcode:1983Natur.301..494B. doi:10.1038/301494a0.
Engel, Michael H.; Nagy, Bartholomew. Distribution and enantiomeric composition of amino acids in the Murchison meteorite. Nature. 1982-04-29, 296 (5860): 837–840. Bibcode:1982Natur.296..837E. doi:10.1038/296837a0.
Bada, Jeffrey L.; Cronin, John R.; Ho, Ming-Shan; Kvenvolden, Keith A.; Lawless, James G.; Miller, Stanley L.; Oro, J.; Steinberg, Spencer. On the reported optical activity of amino acids in the Murchison meteorite. Nature. 1983-02-10, 301 (5900): 494–496. Bibcode:1983Natur.301..494B. doi:10.1038/301494a0.