@article{10_5817_AM2021_3_151,
     author = {Jaro\v{s}, Jaroslav},
     title = {A new look at an old comparison theorem},
     journal = {Archivum mathematicum},
     pages = {151--156},
     publisher = {mathdoc},
     volume = {57},
     number = {3},
     year = {2021},
     doi = {10.5817/AM2021-3-151},
     mrnumber = {4306174},
     zbl = {07396180},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.5817/AM2021-3-151/}
}