Bormann, Peter Data Sheets, New Manual of Seismological Observatory Practice (NMSOP), Deutsches GeoForschungsZentrum;
http://gfzpublic.gfz-potsdam.de/pubman/item/escidoc:43489 (Publisher version)
DS_3.1_rev1.pdf (Publisher version), 744KB
Bormann, P. (2009 online): Magnitude calibration functions and complementary data. - In: Bormann, P. (Ed.), New Manual of Seismological Observatory Practice (NMSOP), Potsdam : Deutsches GeoForschungsZentrum GFZ, 1-8.https://doi.org/10.2312/GFZ.NMSOP_r1_DS_3.1