000			00440nam a2200157Ia 4500
008			130223s9999 xx 000 0 und d
080			_a632.38:635.939.98
100			_aHakkaart, F.A.
245			_aComparison of electron microscopy and serology with infectivity tests for the de
260			_aWageningen
260			_c1969
300			_a355-359 p.
440			_aNo. 527; Nederland Instituut v
901			_pS18402
942			_cB _2udc
999			_c118405 _d118405