The change in policies was to become obvious in 1964, when the Communist regime offered a stiff response to the "Valev Plan", a Soviet project of creating trans-national economic units and of assigning Romanian areas the task of supplying agricultural products. Several other measures of that year also presented themselves as radical changes in tone: after Gheorghiu-Dej endorsed Andrei Oţetea's publishing of Karl Marx's Russophobic texts (uncovered by the Polish historian Stanisław Schwann), the PMR itself took a stand against Khrushchevite principles by issuing, in late April, a declaration published in "Scînteia", through which it stressed its commitment to a "national path" towards Communism (it read: "There does not and cannot exist a "parent" party and a "son" party or "superior" party and "subordinate" parties"). During late 1964, the PMR's leadership clashed with new Soviet leader Leonid Brezhnev over the issue of KGB advisers still present in the Securitate, and eventually managed to have them recalled, making Romania the Eastern Bloc's first country to have accomplished this.