@article{10_21136_CPMF_1906_121200,
     author = {Ku\v{c}era, Bohumil},
     title = {O periodicit\v{e} slune\v{c}n{\'\i}ch skvrn},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {172--179},
     publisher = {mathdoc},
     volume = {35},
     number = {2},
     year = {1906},
     doi = {10.21136/CPMF.1906.121200},
     language = {cz},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1906.121200/}
}