Resolution No.11 (1977): Conversion of magnetic records to microfilms by WDCs
IAGA, noting that the staff of World Data Center A for Solar-Terrestrial Physics has made two extended trips during which magnetograms and hourly-value tables for submission to World Data Centres have been successfully microfilmed at magnetic observatories which had found it difficult to do this, urges that all the World Data Centres arrange such trips in order to make these data available to the scientific community.