TY - JOUR AU - G. Teleki TI - Astronomical Refraction Investigations Today JO - Publications of the Department of Astronomy PY - 1973 SP - 5 EP - 9 VL - 4 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PDA_1973_4_1_a0/ ID - PDA_1973_4_1_a0 ER -