Institute of Plant Genetics
Polish Academy of Sciences
Strzeszyńska 34
60-479 Poznan
Poland
e-mail: mpie@igr.poznan.pl
or
RUCH Company
Jana Kazimierza 31/33
01-248 Warszawa
Poland
Payments should be made by 5 December for the first issue of the next year, by 5 March for the second issue, by 5 June for the third issue and by 5 September for the fourth issue.