Muniozguren J, Grafulla C, Uranga E. ANALYTIC DETERMINATION OF THE REFERENCE TRIHEDRON POSITION RELATED TO THE PRINCIPAL PROJECTION PLANE AND OF THE PROJECTION DIRECTION OF AN OBLIQUE AXONOMETRIC PROJECTION FROM GIVEN AXIS AND VARIATION COEFFICIENTS. Period. Polytech. Transp. Eng. [Internet]. 1990 Jan. 1 [cited 2024 Dec. 1];18(1-2):81-5. Available from: https://pp.bme.hu/tr/article/view/6706