@article{10_14712_1213_7243_2021_031,
     author = {Kry\v{s}tof, V\'aclav},
     title = {Further generalized versions of {Ilmanen's} lemma on insertion of $C^{1,\omega}$ or $C^{1,\omega}_{\text{\rm loc}}$ functions},
     journal = {Commentationes Mathematicae Universitatis Carolinae},
     pages = {445--455},
     publisher = {mathdoc},
     volume = {62},
     number = {4},
     year = {2021},
     doi = {10.14712/1213-7243.2021.031},
     mrnumber = {4405815},
     zbl = {07511572},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.14712/1213-7243.2021.031/}
}