- Audras, G., and L. Schaefer. 1957. Catalogue des bruchides, urodonides, anthribides, nemonychides, scolytides de la region Lyonnaise. Societe Linneenne de Lyon, Bulletin Mensuel 26192-197.
- Schaefer, C. H. 1962. Life history of Conophthorus radiatae (Coleoptera: Scolytidae) and its principal parasite, Cephalonomia utahensis (Hymenoptera: Bethylidae) . Entomological Society of America, Annals 55:569-577.
- Schaefer, C. H. 1963. Factors affecting the distribution of the Monterey-pine cone beetle (Conophthorus radiatae Hopkins) in central California . Hilgardia 34:79-103.
- Schaefer, C. H. 1964. Physical and physiological changes in the adult Monterey-pine cone beetle, Conophthorus i radiatae (Coleoptera: Scolytidae) . Entomological Society of America, Annals 57:195-197.
- Schaefer, L. 1957. Un scolyte nouveau pour la faune francaise . Annales de la Societe d'Horticulture et d'Histoire Naturelle de Herault, Montpellier 1957:127-128.
- Schaefer, L. 1964. Le Scolyte de l'amandier dans le Languedoc [The Scolytus of the almond tree in Languedoc] . Phytoma 16:36.