@article{JGG_2012_16_1_JGG_2012_16_1_a1,
     author = {R. Nakajima and H. Okumura},
     title = {Archimedean {Circles} {Induced} by {Skewed} {Arbeloi}},
     journal = {Journal for geometry and graphics},
     pages = {13--17},
     year = {2012},
     volume = {16},
     number = {1},
     url = {http://geodesic.mathdoc.fr/item/JGG_2012_16_1_JGG_2012_16_1_a1/}
}