@article{KYB_1988_24_3_a1,
     author = {Horv\'ath, Emil},
     title = {On optimum experimental design for ridge estimates},
     journal = {Kybernetika},
     pages = {177--188},
     year = {1988},
     volume = {24},
     number = {3},
     mrnumber = {953687},
     zbl = {0654.62061},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/KYB_1988_24_3_a1/}
}