@article{PORMA_1948__7_3_114665,
     author = {B\"uchi, J. Richard},
     title = {Die {Boole'sche} partialordung und die {Paarung} von {Gefuegen}},
     journal = {Portugaliae mathematica},
     pages = {119--180},
     publisher = {mathdoc},
     volume = {7},
     number = {3},
     year = {1948},
     mrnumber = {0034369},
     zbl = {0038.02002},
     language = {de},
     url = {http://geodesic.mathdoc.fr/item/PORMA_1948__7_3_114665/}
}