@article{10_4153_CJM_2003_046_3,
     author = {{\DH}okovi\'c, Dragomir \v{Z}. and Litvinov, Michael},
     title = {The {Closure} {Ordering} of {Nilpotent} {Orbits} of the {Complex} {Symmetric} {Pair} {(SOp+q} , {SOp} {\texttimes} {SOq} )},
     journal = {Canadian journal of mathematics},
     pages = {1155--1190},
     year = {2003},
     volume = {55},
     number = {6},
     doi = {10.4153/CJM-2003-046-3},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2003-046-3/}
}