Zipser, Tadeusz; Zipser, Wawrzyniec - 2011
characterized by coordinates on some "basic" spherical surface. The basic "air" distance between them can thus be identified … distances from the centre of the sphere. Thus connections longer or shorter than the basic distance are to be found on an other … the distance is due to a "roundabout" connection or to the low speed parameters etc. It is thus possible to dodge the …