On February 29th – March 1st groups collaborating on common project supported by the Polish-Swiss Research Programme met in EAWAG, Zurich. During the meeting thus far studies have been summed up but the main discussion was dedicated to plans of studies to be carried out during the remaining half a year of the project. It has been concluded that the main goal is to finish studies of oxygen isotope effects. In the next step calculations for mutated forms of NBDO as well as for the 2NTDO model obtained from homology modeling will be continued.