0RL 00000nz 22000003 45 001 cnp01073942 100 $a20070202xmuly50 ba 110 $a2 200 1$aKoch$bL.$cDE$5GyFmDB 291 1$aKoch, L.: Einführung in die Elektrizitätslehre f. Photographen .... - 1925 801 $aDE$bPND$c20060707$n101314183$gRAK 956 8$0same$nVIAF$yhttp://viaf.org/viaf/47126303$8eng$zClustered authority record 956 8$0same$nDNBI$yhttp://d-nb.info/gnd/101314183$8eng$zAuthority record 998 $a20070202$b12:00:00