TY - RPRT TI - X-ray emitting BL Lacertae objects located by the scanning modulation collimator experiment on HEAO 1 AU - Schwartz, D. A. AU - Griffiths, R. E. AU - Schwarz, J. AU - Doxsey, R. E. AU - Johnston, M. D. PY - 1979 UR - https://ntrs.nasa.gov/citations/19790049161 ID - 19790049161 ER -