@article{JOLT_2017_27_4_a5,
     author = {Y. Yoshii},
     title = {Primitive {Idempotents} of the {Hyperalgebra} for the r-th {Frobenius} kernel of {SL(2,k)}},
     journal = {Journal of Lie Theory},
     pages = {995--1026},
     year = {2017},
     volume = {27},
     number = {4},
     doi = {10.5802/jolt.979},
     zbl = {1381.16026},
     url = {https://jolt.centre-mersenne.org/articles/10.5802/jolt.979/}
}