TY - GENERIC DO - 10.20944/preprints202108.0165.v1 UR - http://dx.doi.org/10.20944/preprints202108.0165.v1 TI - Approximate Calculation of the Inclination Angle of Beams with Variable Cross Sections T2 - Preprints AU - Biró, István PY - 2021 DA - 2021/08/06 PB - Preprints