Aka itself was co-founded by Walter Jalowicz (who changed his name to Johnson and later worked for Academic Press in New York) and his son-in-law K. Jacoby, together with the physicist (and spy) Paul Rosbaud (later of Butterworth), and chemist E. Proskauer (later vice-president of John Wiley & Sons).
Paul Cohn, Universal Algebra (1981), D.Reidel Publishing, Holland.