CCN GAC Workshop: Issues with learning in biological recurrent neural networks. - Luke Y. Prince; Ellen Boven; Roy Henha Eyono; Arna Ghosh; Joe Pemberton; Franz Scherr; Claudia Clopath; Rui Ponte Costa; Wolfgang Maass 001; Blake A. Richards; Cristina Savin; Katharina Anna Wilmes (CoRR, 2021)