TY - BOOK AU - Ramasastry, J. AU - Walsh, E. J. TI - Characteristics of magnetospheric ducts observed by the alouette-2 topside sounder [NASA TN D-5847] PY - 1970/// CY - Washington, D.C. PB - Nasa KW - Magnetospheric N1 - Bound With Nasatn D-5841-5846,5848-5850; Technical Note D-5847 ER -