@article{10_21136_CPMF_1921_109183,
     author = {Dusl, Karel},
     title = {O isogon\'aln\'em zobrazen{\'\i} \v{c}ty\v{r} thetafunkc{\'\i} {Jacobiho,} jich\v{z} modul jest \v{c}{\'\i}slo ryze imagin\'arn{\'\i}},
     journal = {\v{C}asopis pro p\v{e}stov\'an{\'\i} matematiky a fysiky},
     pages = {102--115},
     year = {1921},
     volume = {50},
     number = {2-3},
     doi = {10.21136/CPMF.1921.109183},
     language = {cs},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CPMF.1921.109183/}
}