The programs remain property of the authors. Purchaser is not allowed to distribute programs to a third party without written consent of the authors. The charge for each module is Dfl. For universities and other governmental research institutions the amount of Dfl. 250,- will be charged.
Special rates apply when more than two modules are bought.
Purchaser will take care that in publication of results, obtained through the use of one of these programs, the name of the program and its authors will be referred to, and copies of such publications will be sent to the authors of the programs. The programs with accompanying user guides will be sent within one month after receipt of the order. Within one month after receipt of the programs, the total charge will be paid. AK Leiden, The Netherlands Tel.