@article{DMGAA_2001_21_1_a5,
     author = {Dorfer, Gerhard},
     title = {Some properties of congurence relations on orthomodular lattices},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {57--66},
     year = {2001},
     volume = {21},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2001_21_1_a5/}
}