@article{articlea654010e,
title   = {A characterisation of the Hoffman–Wohlgemuth surfaces in terms of their symmetries},
author = {Ramos Batista, Valerio and Simões, Plínio Amarante Quirino},
year = {2009},
doi = {10.1007/s10711-009-9366-1},
journal   = {Geometriae Dedicata}
}