@article{10_1017_S0017089505002259,
     author = {AGAFONOV, S. I. and FERAPONTOV, E. V.},
     title = {INTEGRABLE {FOUR-COMPONENT} {SYSTEMS} {OF} {CONSERVATION} {LAWS} {AND} {LINEAR} {CONGRUENCES} {IN} ${\mathbb P}^5$},
     journal = {Glasgow mathematical journal},
     pages = {17--32},
     year = {2005},
     volume = {47},
     number = {A},
     doi = {10.1017/S0017089505002259},
     url = {http://geodesic.mathdoc.fr/articles/10.1017/S0017089505002259/}
}