Voir la notice de l'article provenant de la source European Digital Mathematics Library
@article{AMLG_1977__18_137928, author = {Klaus Potthoff}, title = {A simple tree and its application to a counterexample of {Philips.}}, journal = {Archiv f\"ur mathematische Logik und Grundlagenforschung}, pages = {67--72}, publisher = {mathdoc}, volume = {18}, year = {1977}, zbl = {0402.03024}, url = {http://geodesic.mathdoc.fr/item/AMLG_1977__18_137928/} }
Klaus Potthoff. A simple tree and its application to a counterexample of Philips.. Archiv für mathematische Logik und Grundlagenforschung, Tome 18 (1977), pp. 67-72. http://geodesic.mathdoc.fr/item/AMLG_1977__18_137928/