1. Barlow, J. (1994), “Abundance of Large Whales in California Coastal Waters: A Comparison of Ships Surveys in 1979/80 and in 1991,” Report of the International Whaling Commission, 44, 399–406.
2. Borchers, D. L., Buckland, S. T., Goedhart, P. W., Clarke, E. D., and Hedley, S. L. (1998), “Horvitz-Thompson Estimators for Double-platform Line Transect Surveys,” Biometrics, 54, 1221–1237.
3. Borchers, D. L., and Haw, M. D. (unpublished), “Estimation of Minke Whale Abundance from the 1987/8 IWC/IDCR Antarctic Assessment Cruise in Area III,” Paper SC/41/SHMi4; available from the International Whaling Commission.
4. Branch, T. A., and Butterworth, D. L. (2001), “Estimates of Abundance South of 60° S for Cetacean Species Sighted Frequently on the 1978/79 to 1997/98 IWC/IDCR-SOWER Sighting Surveys,” Journal of Cetacean Research and Management, 3, 251–270.
5. Buckland, S. T., Cattanach, K. L., and Gunnlaugsson, Th. (1992), “Fin Whale Abundance in the North Atlantic, Estimated from Icelandic and Faroese NASS-87 and NASS-89 Data,” Report of the International Whaling Commission, 42, 645–651.