00332nam a2200097Ia 4500008004100000082001600041100002100057245008300078260006600161300000700227140113s9999    xx            000 0 und d  a581.08   K7  a"Pierik, R.L.M."  aRegeneration. Vernalization and flowering in unaria annua L. in vivo and vitro  a1967bMededelingen Landbouwhogeschool WageningencNetherlands  a71