Problems for Solution: 3272-3279L. M. Berkeley, Nathan Altshiller-Court, C. N. Mills, J. A. Shohat, L. L. Silverman, J. Tamarkin, R. H. Sciobereti, J. V. Uspensky, J. Rosenbaum, Problems for Solution: 3272-3279, The American Mathematical Monthly, Vol. 34, No. 7 (Aug. - Sep., 1927), pp. 380-381
Problems for Solution: 3543-3551L. M. Berkeley, Nathan Altshiller-Court, George Y. Sosnow, W. H. Rasche, Martin Rosenman, J. B. Reynolds, Dewey C. Duncan, H. L. Fisher, Eugene M. Berry, Problems for Solution: 3543-3551, The American Mathematical Monthly, Vol. 39, No. 4 (Apr., 1932), pp. 238-240