E. L. Burdette, K. E. Steele, A. Trampus; Directional Wave Spectral Data from a Large Discus Buoy, Proceedings of MTS/IEEE OCEANS'78 Conference, pp. 622 - 628, September 1978.
K. E. Steele, A. Trampus, P. A. Wolfgram, B. S. Graham; An Operational High Resolution Wave Data Analyzer System for Buoys, Proceedings of MTS/IEEE OCEANS'76 Conference, pp. 337 - 345, September 1976.