TY  - RPRT
TI  - Mean electron density variations of the quiet ionosphere no. 13: Summary of one year of data. May 1959-April 1960
AU  - Brown, DJ
AU  - Wescott, LR
AU  - Wright, JW
PY  - 1959
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 40-13
DO  - 10.6028/NBS.TN.40-13
ER  -