https://creativecommons.org/licenses/by-sa/4.0CC BY-SA 4.0 Creative Commons Attribution-Share Alike 4.0 truetrue English Development of Earth cube map projections...
English Comparison of tangent and secant cylindrical, conic and azimuthal map projections with standard parallels shown in red. determination method: SHA-1...
4.0 truetrue English Comparison of tangent and secant forms of Mercator map projections with standard parallels shown in red determination method: SHA-1...