1@string{JFP="J. Functional Programming"} 2 3@article{MuellerNvOS99, 4author= 5{Olaf M{\"u}ller and Tobias Nipkow and Oheimb, David von and Oskar Slotosch}, 6title={{HOLCF = HOL + LCF}},journal=JFP,year=1999,volume=9,pages={191--223}} 7 8