PALEOECOLOGICAL RECONSTRUCTIONS IN SOUTHERN EGYPT BASED ON THE STABLECARBON AND NITROGEN ISOTOPES IN THE ORGANIC FRACTION AND STABLE CARBON ISOTOPES IN INDIVIDUAL AMINO-ACIDS OF FOSSIL OSTRICH EGGSHELL
Bj. Johnson et al., PALEOECOLOGICAL RECONSTRUCTIONS IN SOUTHERN EGYPT BASED ON THE STABLECARBON AND NITROGEN ISOTOPES IN THE ORGANIC FRACTION AND STABLE CARBON ISOTOPES IN INDIVIDUAL AMINO-ACIDS OF FOSSIL OSTRICH EGGSHELL, Chemical geology, 107(3-4), 1993, pp. 493-497