@article{701555,
title = {Hopf structures on the Borel subalgebra of $sl(2)$
},
booktitle = {Proceedings of the Winter School "Geometry and Physics"},
series = {GDML\_Books},
publisher = {Circolo Matematico di Palermo},
address = {Palermo},
year = {1994},
pages = {[185]-199},
mrnumber = {MR1344011},
zbl = {0879.16027},
url = {http://dml.mathdoc.fr/item/701555}
}
Ogievetsky, O. Hopf structures on the Borel subalgebra of $sl(2)$
, dans Proceedings of the Winter School "Geometry and Physics", GDML_Books, (1994), pp. [185]-199. http://gdmltest.u-ga.fr/item/701555/