TY - GEN AU - Wright, J W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1962-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.146 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1962 TI - Analysis of ionospheric vertical soundings for electron density profile data. III, Procedures for obtaining monthly summary virtual height curves for N (h) analysis (composite virtual height curves): ER -