1 Jan
                
                    2019
                
            
            
                1 Jan
                
                '19
                
            
            
            
        
    
                12:36 p.m.
            
        Dear Colleagues, I draw your attention to the planning of IUCr Congress 2020 in Prague for which I am assisting with the programme planning on the data aspects:- http://forums.iucr.org/viewtopic.php?f=39&t=41 The Programme Committee is listed here:- http://www.iucr25.org/ipc/list.htm All best wishes, John Emeritus Professor John R Helliwell DSc Chairman of the IUCr Committee on Data