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@article{AUCMP_1973__14_2_a7, author = {Beran, L.}, title = {On a construction of amalgamation {I}}, journal = {Acta Universitatis Carolinae. Mathematica et Physica}, pages = {31--39}, publisher = {mathdoc}, volume = {14}, number = {2}, year = {1973}, mrnumber = {0357249}, zbl = {0289.06006}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AUCMP_1973__14_2_a7/} }
Beran, L. On a construction of amalgamation I. Acta Universitatis Carolinae. Mathematica et Physica, Tome 14 (1973) no. 2, pp. 31-39. http://geodesic.mathdoc.fr/item/AUCMP_1973__14_2_a7/