@article{JGG_2018_22_2_JGG_2018_22_2_a3,
     author = {R. Manfrin },
     title = {A {Proof} of {Pohlke's} {Theorem} with an {Analytic} {Determination} of the {Reference} {Trihedron}},
     journal = {Journal for geometry and graphics},
     pages = {195--205},
     publisher = {mathdoc},
     volume = {22},
     number = {2},
     year = {2018},
     url = {http://geodesic.mathdoc.fr/item/JGG_2018_22_2_JGG_2018_22_2_a3/}
}