==== Google books ====

[[http://books.google.de/books?id=0MURkyjuoGMC&printsec=frontcover&dq=Pruppacher&source=bl&ots=4FYjXr-a9l&sig=FKcxeK71mJcnyTF1SbclzyssnyE&hl=de&ei=UXjRTJPXKdL_4AbzqtHpDA&sa=X&oi=book_result&ct=result&resnum=4&ved=0CCgQ6AEwAw#v=twopage&q&f=true|Pruppacher and Klett - Microphysics of Clouds and Precipitation]]

==== Papers in open discussion ====

[[http://www.atmos-meas-tech-discuss.net/2/3369/2009/amtd-2-3369-2009-discussion.html]]

==== S-Bahn timetable ====

[[timetables]]