@article{10_1017_S0017089508004394, author = {HERZOG, GERD and LEMMERT, ROLAND}, title = {BOUNDARY {VALUE} {PROBLEMS} {VIA} {AN} {INTERMEDIATE} {VALUE} {THEOREM}}, journal = {Glasgow mathematical journal}, pages = {531--537}, year = {2008}, volume = {50}, number = {3}, doi = {10.1017/S0017089508004394}, url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089508004394/} }