The submitted manuscripts may be in the format of remarks, conjectures, solved/unsolved or open new problems, notes, articles, miscellaneous, etc. They must be original work and camera ready [typewritten/computerized, format: 8.5 x 11 inches (z 21,6 x 28 centimetres)]. They are not returned, hence we advise the authors to keep a copy. ~l contributions must be in English. The title of the paper iswritting with capital letters. The author’s name had to apply in the middle of the line, near the title. References should be mentioned in the text by a number in square brackets and should be listed alphabetically. Current address followed bye-mail address should apply at the end of the paper, after the references.