KBBFKing Biscuit Blues Festival (now Arkansas Blues and Heritage Festival)
References in periodicals archive ?
A KBBF prism coupling device-based DPL source features a smaller size, higher energy resolution and higher photon influx density.
Xu said that they were allowed to use their labs because Chinese mainland research institutes did not have similar ones at that time, adding that they eventually, after many strenuous efforts, invented a KBBF prism coupling device.