TY - JOUR AU - A. I. Bugrij TI - Some properties of the double spectral function for dual amplitude with mandelstam analyticity JO - Teoretičeskaâ i matematičeskaâ fizika PY - 1973 SP - 355 EP - 359 VL - 16 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/TMF_1973_16_3_a7/ LA - ru ID - TMF_1973_16_3_a7 ER -