Birkholz, Mandy-Nicole; Dubrovina, Natalia V.; Jiao, Haijun; Michalik, Dirk; Holz, Jens; Paciello, Rocco; Breit, Bernhard; Boerner, Armin Chemistry - A European Journal, 2007 , vol. 13, # 20 p. 5896 - 5907