@article{GDZPPN002346206,
title = {Homogeneous Universal Relational Systems.},
journal = {Mathematica Scandinavica},
volume = {8},
year = {1960},
pages = {137-142},
zbl = {0173.00505},
url = {http://dml.mathdoc.fr/item/GDZPPN002346206}
}
Jonsson, B. Homogeneous Universal Relational Systems.. Mathematica Scandinavica, Tome 8 (1960) pp. 137-142. http://gdmltest.u-ga.fr/item/GDZPPN002346206/