  In the paper `Automorphic functions for a Whitehead-complement group', [Osaka
J Math 43 (2006) 63-77] Matsumoto, Nishi and Yoshida constructed automorphic
functions on real 3-dimensional hyperbolic space for a Kleinian group called
the Whitehead-link-complement group. For a Kleinian group (of the first kind),
no automorphic function/form has been studied before. In this note, their
motivation is presented with a historical background.
