1. Monopoly and competition in banking;David Alhadeff,1954
2. Economies of scale in banking: Research estudy one in private financial institution, Commission on money and credit;Horvitz Paul M,1953
3. Chicago Banking;Schweiser Irwing;Journal of Business,1961
4. Economies of scale in commercial banking;Bell Frederick W,1967
5. Chicago banking;Schweiser Irwing;The Journal of Business,1961