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Andrzej Mazur
Institute of Meteorology and Water Management - National Research Institute, ul. Podleśna 61, 01-673 Warszawa, Poland, phone +48 22 569 41 34, fax +48 22 569 43 56
Jerzy Bartnicki
Institute of Meteorology and Water Management - National Research Institute, ul. Podleśna 61, 01-673 Warszawa, Poland, phone +48 22 569 41 34, fax +48 22 569 43 56 / Norwegian Meteorological Institute, Postboks 43 Blindern, 0313 Oslo, Norway
Jerzy Zwoździak
Institute of Meteorology and Water Management - National Research Institute, ul. Podleśna 61, 01-673 Warszawa, Poland, phone +48 22 569 41 34, fax +48 22 569 43 56