@article{10_4153_S0008414X21000341,
     author = {Parkinson, James and Maldeghem, Hendrik Van},
     title = {Automorphisms and opposition in spherical buildings of exceptional type, {I}},
     journal = {Canadian journal of mathematics},
     pages = {1517--1578},
     year = {2022},
     volume = {74},
     number = {6},
     doi = {10.4153/S0008414X21000341},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/S0008414X21000341/}
}