TY - JOUR AU - Hoer, C. C2 - Dig.12-13 June 1987Las VegasNV DA - 1987-06-01 00:06:00 LA - en PB - Dig.12-13 June 1987Las VegasNV PY - 1987 TI - Some Questions and Answers Concerning Air Lines as Impedance Standards ER -