PT Journal AU Torgashin, MY Koshelets, VP Dmitriev, PN Ermakov, AB Filippenko, LV Yagoubov, PA TI Superconducting integrated receivers based on Nb-AlN-NbN circuits SO IEEE Trans. Appl. Supercond. PY 2007 BP 379 EP 382 VL 17 IS 2 ER