our dear friend and colleague from piter sent this foto attached to a "christmas email" on december 24. given time pressure of the last weeks, around 100 emails daily and the need to survive in front of my office computer, u.´s email simply slipped through my attentiveness. only today, when "cleaning up" to avoid the regular overfill of my share of server space I got aware of this wonderful foto. in the meantime we met u. and v. in vienna and we spent a very pleasent sunday together walking, eating and drinking up and down the bisamberg. apologies to both of you! maybe next time ......