@article{AUPO_2000__39_1_a4,
     author = {Jukl, Marek},
     title = {Galois triangle theory for direct summands of modules},
     journal = {Acta Universitatis Palackianae Olomucensis. Facultas Rerum Naturalium. Mathematica},
     pages = {67--71},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {2000},
     mrnumber = {1826353},
     zbl = {1043.51002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/AUPO_2000__39_1_a4/}
}