@article{10_4153_S0008414X22000529,
     author = {Kourou, Maria and Roth, Oliver},
     title = {Geometric versions of {Schwarz{\textquoteright}s} lemma for spherically convex functions},
     journal = {Canadian journal of mathematics},
     pages = {1780--1799},
     year = {2023},
     volume = {75},
     number = {6},
     doi = {10.4153/S0008414X22000529},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008414X22000529/}
}