Brandts, Jan; Cihangir, Apo; Křížek, Michal:
Součet úhlů ve čtyřstěnu.
(Czech) [The sum of angles in a tetrahedron].Pokroky matematiky, fyziky a astronomie,
vol. 60
(2015),
issue 2,
pp. 113-122
Brandts, Jan; Cihangir, Apo: Counting triangles that share their vertices with the unit $n$-cube.
(English).
In:
Brandts, J., Korotov, S., Křížek, M., Šístek, J.
and Vejchodský, T. (eds.): Applications of Mathematics 2013, In honor of the 70th birthday of Karel Segeth.
Proceedings. Prague, May 15-17, 2013.
Institute of Mathematics AS CR, Prague, 2013.
pp. 1-12
