@article{MAN_1970__186_161987, author = {W. TAYLOR}, title = {Convergence in {Relational} {Structures.}}, journal = {Mathematische Annalen}, pages = {215--227}, year = {1970}, volume = {186}, zbl = {0183.27103}, url = {http://geodesic.mathdoc.fr/item/MAN_1970__186_161987/} }