TY - JOUR AU - S. S. Girgel TI - Circular $3D$ Kummer--Gauss beams with the continuous angular index JO - Problemy fiziki, matematiki i tehniki PY - 2019 SP - 16 EP - 20 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/PFMT_2019_1_a2/ LA - ru ID - PFMT_2019_1_a2 ER -