Spherical splines
ESAIM: Modélisation mathématique et analyse numérique, Topics in computer aided geometric design , Tome 26 (1992) no. 1, pp. 1-22. 
@article{M2AN_1992__26_1_1_0,
     author = {Hoschek, J. and Seemann, G.},
     title = {Spherical splines},
     journal = {ESAIM: Mod\'elisation math\'ematique et analyse num\'erique},
     pages = {1--22},
     publisher = {AFCET - Gauthier-Villars},
     address = {Paris},
     volume = {26},
     number = {1},
     year = {1992},
     mrnumber = {1154997},
     zbl = {0755.41011},
     language = {en},
     url = {http://www.numdam.org/item/M2AN_1992__26_1_1_0/}
}
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Hoschek, J.; Seemann, G. Spherical splines. ESAIM: Modélisation mathématique et analyse numérique, Topics in computer aided geometric design , Tome 26 (1992) no. 1, pp. 1-22. http://www.numdam.org/item/M2AN_1992__26_1_1_0/

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