@article{10_4064_cm_14_1_1_32,
     author = {B. J\'onsson},
     title = {The unique factorization problem for finite relational structures},
     journal = {Colloquium Mathematicum},
     pages = {1--32},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1966},
     doi = {10.4064/cm-14-1-1-32},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-14-1-1-32/}
}