Some say , he did so in order to save these libraries , others say , Gregor profited from the policital persecution .
Gregor 's role in the era of National Socialism is disputed controversially : Gregor incorporated many libraries of politically persecuted intellectuals into the Austrian National Library .
Some say , Gregor did so in order to save these libraries , others say , Gregor profited from the policital persecution .
Gregor 's role in the era of National Socialism is disputed controversially : Gregor incorporated many libraries of politically persecuted intellectuals into the Austrian National Library .