[Exponent]. Doesburg, T. van, under pseud. I.K. Bonset. Verzen uit 1914.

N.pl. (Bedum), Exponent, 1987, (19)p., 1 facs. ill., printed in 135 numb. copies, orig. wr., 4to. Rawie, J.P. Hemeltekens. Ibid., idem, 1991, (21)p., printed in black and blue in 170 numb. copies (135), orig. wr. - AND 9 others similar publ. by the same, i.a. by M. Asscher, A. Blaman, C.O. Jellema, A. Korteweg, J.P. Rawie and M. Vasalis.