Takacs, Jeno. Quodlibet. Kay, Robert. The Double Reed 10/3 (Winter 1987): 20. Kay recommends the following fingerings for the extreme upper register:

F#4:
x o x | o o o
d  c#

G5:
o o x | o o o
 c c#

G#5:
o x o | x o o
d c

A5:
o x o | o o o
d c

For the G#5 to A5 glissando, finger G#5 above and release the right-hand index finger slowly.

Suggested contrabassoon (German system) fingerings for musical passages