Viktor Masing
Viktor Masing ( 11 April 1925 , Tartu – 18 March 2001 ) was an Estonian botanist and ecologist . 
<triplet> Viktor Masing <subj> 11 April 1925 <obj> date of birth <subj> Tartu <obj> place of birth <subj> 18 March 2001 <obj> date of death <triplet> Tartu <subj> Estonia <obj> country