@article{FORUM_1996__8_3_141763,
     author = {Erkki Laitinen},
     title = {End homolgy and duality.},
     journal = {Forum mathematicum},
     pages = {121--134},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1996},
     url = {http://geodesic.mathdoc.fr/item/FORUM_1996__8_3_141763/}
}