@article{PORMA_2003__60_2_50867,
     author = {Fraga Alves, M.I. and Gomes, M.Ivette and de Haan, Laurens},
     title = {A new class of semi-parametric estimators of the second order parameter.},
     journal = {Portugaliae mathematica},
     pages = {193--213},
     publisher = {mathdoc},
     volume = {60},
     number = {2},
     year = {2003},
     zbl = {1042.62050},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/PORMA_2003__60_2_50867/}
}