@article{10_21136_CPM_1965_108654,
     author = {Marek, Ivo},
     title = {On $\cal K$-positive elements of the spectral resolution of a $\cal K$-positive operator},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky},
     pages = {442--450},
     publisher = {mathdoc},
     volume = {090},
     number = {4},
     year = {1965},
     doi = {10.21136/CPM.1965.108654},
     mrnumber = {0198249},
     zbl = {0138.39301},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPM.1965.108654/}
}