group divisible incomplete block designs

air compressor crank case arcing voltage bobbsey chernyshevite (tschernichewite) gas injection module generalized data base subsystem Hookerton horizontal attachment lagarangian correlation lift-type disk Lobsteln's cancer phenyl boric acid portio supravaginalis run-in Rüthi supersaturated vapo(u)r the International Baccalaureate unalleviated us type variable free-stream velocity