@article{DMGAA_2001_21_1_a7,
     author = {Chajda, Ivan and L\"anger, Helmut},
     title = {Hypersubstitutions in orthomodular lattices},
     journal = {Discussiones Mathematicae. General Algebra and Applications},
     pages = {83--92},
     publisher = {mathdoc},
     volume = {21},
     number = {1},
     year = {2001},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/DMGAA_2001_21_1_a7/}
}