To generate payment receipts in PDF, type "run". Addresses and amounts need to be in the file "payments.txt" in the format below. Date and currency can be adjusted in "payments.py". Output is in the subdirectory output/. \noindent 364 {\bf Prof. Edward Hall}\\ University of Nottingham, University Park, Nottingham, NG7 2RD, UK\\ \noindent 364 {\bf Prof. Dr. Jens Lang}\\ Numerical Analysis and Scientific Computing, Technical University of Darmstadt, Dolivostrasse 15, 64293 Darmstadt, Germany \\