His paper was not accepted as a complete proof as it contained a gap , and the first complete proofs were given in about 1967 by Baker and Stark .
In 1952 Heegner published a solution to this problem .
Heegner 's paper was not accepted as a complete proof as it contained a gap , and the first complete proofs were given in about 1967 by Baker and Stark .
In 1952 Heegner published a solution to this problem .