RecordDetails
http://www.gbv.de/dms/hbz/toc/ht003364605.pdf
http://digitool.hbz-nrw.de:1801/webclient/DeliveryManager?pid=2308864&custom_att_2=simple_viewer
http://catdir.loc.gov/catdir/enhancements/fy0731/90118409-d.html
http://www.zentralblatt-math.org/zmath/en/search/?an=0744.62098
http://digitool.hbz-nrw.de:1801/webclient/DeliveryManager?pid=2308864&custom%5Fatt%5F2=simple%5Fviewer