Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1997_61_5_a3, author = {M. I. Kadets and K. \`E. Kaibkhanov}, title = {Continuation of a~linear operator to an involution operator}, journal = {Matemati\v{c}eskie zametki}, pages = {671--676}, publisher = {mathdoc}, volume = {61}, number = {5}, year = {1997}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1997_61_5_a3/} }
M. I. Kadets; K. È. Kaibkhanov. Continuation of a~linear operator to an involution operator. Matematičeskie zametki, Tome 61 (1997) no. 5, pp. 671-676. http://geodesic.mathdoc.fr/item/MZM_1997_61_5_a3/
[1] Lindenstrauss J., Tzafriri L., Classical Banach Spaces. I. Sequence Spaces, Springer, Berlin, 1977