Huysmans, G. T. A., Galvao, R. M. O., & Goedbloed, J. P. (1990). Documentation of the high beta stability codes HBT and HBTAS at JET (No. RR 90-194). Nieuwegein, Netherlands: FOM Rijnhuizen. (Original work published 1990)
Huysmans, G. T. A., Galvao, R. M. O., & Goedbloed, J. P. (1990). High-beta stability studies of JET discharges with the numerical program HBT (No. RR 90-193). Nieuwegein, Netherlands: FOM Rijnhuizen. (Original work published 1990)