1. Western Construction, Vol. 43, No. 8, 34, 38–40 (1966); No. 10, 31–35 (1968).
2. ENR., Vol. 180, No. 8, 48–50 (1968);
3. Vol. 183, No. 2, 42–45 (1969).
4. Construction Equipment and Materials, Vol. 39, No. 4, 34–35 (1969).
5. Construction Methods and Equipment, Vol. 50, No. 5, 54–59 (1968).