Omlouvam se vsem za svoji blbost. Josef Rocek Pepa Ro\v{c}ek Colloid & Membrane Research Group, Chemistry Dept. University of Glasgow, Glasgow G12 8QQ Tel +44 141 339 8855 ext. 6566 Fax. +44 141 330 4888 Email pepa at chem.gla.ac.uk