@article{10_4064_cm_40_1_13_21,
     author = {Janusz Czelakowski},
     title = {On extending of partial {Boolean} algebras to partial *-algebras},
     journal = {Colloquium Mathematicum},
     pages = {13--21},
     publisher = {mathdoc},
     volume = {40},
     number = {1},
     year = {1978},
     doi = {10.4064/cm-40-1-13-21},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm-40-1-13-21/}
}