@article{10_21136_CMJ_1985_102048,
     author = {Han\v{c}l, Jaroslav},
     title = {Two proofs of transcendency of $\pi$ and $e$},
     journal = {Czechoslovak Mathematical Journal},
     pages = {543--549},
     publisher = {mathdoc},
     volume = {35},
     number = {4},
     year = {1985},
     doi = {10.21136/CMJ.1985.102048},
     mrnumber = {809040},
     zbl = {0587.10017},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1985.102048/}
}