@article{10_4064_cm_48_2_181_192,
     author = {George Gr\"atzer and David Kelly},
     title = {Free ${\germ m}$-products of lattices. {I}},
     journal = {Colloquium Mathematicum},
     pages = {181--192},
     publisher = {mathdoc},
     volume = {48},
     number = {2},
     year = {1984},
     doi = {10.4064/cm-48-2-181-192},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-48-2-181-192/}
}