Right Triangular Dihedral f-Tilings of the Sphere: (α, β, π/2) and (γ, γ, π/2)

Catarina P. Avelino, Altino F. Santos. Right Triangular Dihedral f-Tilings of the Sphere: (α, β, π/2) and (γ, γ, π/2). Ars Comb., 121:227-274, 2015.