Functional equations and nowhere differentiable functions. (Summary). Roland Girgensohn — 1993 Aequationes mathematicae
Nowhere differentiable solutions of a system of functional equations. Roland Girgensohn — 1994 Aequationes mathematicae
Nonwhere differentiable solutions of a system of functional equations. (Summary). Roland Girgensohn — 1993 Aequationes mathematicae
Functional equations and nowhere differentiable functions. Roland Girgensohn — 1993 Aequationes mathematicae
An infinite-dimensional subspace of C [ 0 , 1 ] consisting of functions with no finite one-sided derivatives. Girgensohn, Roland — 2001 Mathematica Pannonica
Evaluation of triple Euler sums. Borwein, Jonathan M.; Girgensohn, Roland — 1996 The Electronic Journal of Combinatorics [electronic only]
Experimental evaluation of Euler sums. Bailey, David H.; Borwein, Jonathan M.; Girgensohn, Roland — 1994 Experimental Mathematics