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Ourisson Guy, Crabbe Pierre & Rodig Oscar. (1964). Tertracyclic triterpenes. : .
Ourisson Guy, Crabbe Pierre and Rodig Oscar. 1964. Tertracyclic triterpenes. : .
Ourisson Guy, Crabbe Pierre and Rodig Oscar. (1964). Tertracyclic triterpenes. : .
Ourisson Guy, Crabbe Pierre and Rodig Oscar. Tertracyclic triterpenes. : . 1964.