Pure Appl. Chem., 1993, Vol. 65, No. 6, pp. 1281-1292
http://dx.doi.org/10.1351/pac199365061281
On the origins of organic matter in carbonaceous chondrites
First page:

Pure Appl. Chem., 1993, Vol. 65, No. 6, pp. 1281-1292
http://dx.doi.org/10.1351/pac199365061281