Isoazimuthal lines of position at sea and in the air: uniform ans universal solutions also for sumner's straight line of position by Marcq Saint-Hilaire's method and for a fix from altitude and Azimuth : the genesis of a fix from altitude and azimuth, the genesis of the "isoal" and of the "isoaz", longines' sea and air chronometer of 1939
Aquino Francisco Radler de, Reynolds Frank F., Aquino's spherical traverse tables by Franc F. Reynolds | Impresa naval | 1939