From the Bassoon-Family Fingering Companion by Terry B. Ewell Nekliudov, Yuri. In Corey, Gerald E. "How to Improve Your Tuning on the Bassoon." The Journal of the International Double Reed Society 8 (1980): 30. Namenye, John. In Apfelstadt, Marc and Klimko, Ronald. Bassoon Performance Practice, Teaching Materials, Techniques and Methods. Idaho: University of Idaho, 1993, p. 67. Nekliudov lists this fingering with no half-hole. Namenye lists the fingering using the half-hole