found: Wiśniewski, B. Philon von Larissa, 1982:t.p. (Philon von Larissa) p. 23, etc. (... aus dem thessalischen Ort Larissa; b. & d. dates difficult to determine; studied in Athens under Kleitomachos; moved to Rome; contemporary of Cicero) p. 45 (Filon z Laryssy)
found: Brockhaus Enzyk., 1972(Philon von Larissa, griech. Philosoph d. Neueren Akademie, b. um 140 v. Chr., d. um 70; wrote on ethical questions, but nothing written by him exists)
found: Paulys Real-Encyc., 1938(Philon, aus dem thessalischen Larissa, Philosoph, Akademiker, Schüler des Kleitomachos)
found: BM(Philo, of Larissa)
found: Oxford class. dict., 1970(Philon of Larissa, 160/59-c. 80 B.C.; studied in Athens under Clitomachus; taught Cicero in Rome; none of his writings were preserved)
notfound: Encyc. brit., 1978;Encyc. amer., 1975;Collier's, 1973.
