We were together :

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2004 Hongkong 2008 Kyoto 2008 Kyoto 2008 Kyoto 2008 Kyoto
2004: Hongkong 2008: Kyoto IUCr computing workshop 2008: Kyoto IUCr computing workshop 2008: Kyoto IUCr computing workshop 2008: Kyoto IUCr computing workshop
1999 Beijing 2002 Quebec 2002 Geneva 2002 Geneva 2002 Beijing
1999: Institute of Physics 2002: MSA Meeting, Quebec, Canada 2002: XIX IUCr, Geneva, Switzerland 2002: XIX IUCr, Geneva, Switzerland 2002: Beijing
1996 Seattle 1997 Erice 1997 Beijing 1998 Beijing 1999 Beijing
1996: XVII IUCr, Seattle, USA 1997 Erice 1997: Friendship Hotel, Beijing 1998: Institute of Biophysics, Beijing 1999: Institute of Physics
1987 Perth 1988 Boston 1990 Erice 1992 Beijing 1995
Kuala Lumpur
1987: XIV IUCr, Perth 1988: Boston, USA 1990: Summer School, Erice, Italy 1992: Institute of Physics, Beijing 1995: Kuala Lumpur, Malaysia
1978 England 1980 Beijing 1981 York 1985 Beijing 1987 Beijing
1978-UK 1980: Institute of Physics, Beijing 1981: Universtity of York, England 1985: Institute of Physics, Beijing 1987: Beijing Airport, leaving for Tokyo