Anderson, A.J.B. 1971. Ordination methods in ecology. J. Ecol. 59: 713–726.

Austin, M.P. 1976a. On non-linear species response models in ordination. Vegetatio 33: 33–41.

Austin, M.P. 1976b. Performance of four ordination techniques assuming three different non-linear species response models. Vegetatio 33: 43–49.

Birks, H. J. B. 1976. The distribution of European pteridophytes: a numerical analysis. New Phytol. 77: 257–287.

Carroll, J.D. 1972. Individual differences and multidimensional scaling. In R.N., Shepard, A.K., Romney & S.B., Nerlove (eds.): Multidimensional Scaling. Volume 1. Theory, p. 105–155. Seminar Press, New York.

Curtis, J.T. & R.P., McIntosh. 1951. An upland forest continuum in the prairie-forest border region of Wisconsin. Ecology 32: 476–496.

Dale, M.B. 1975. On objectives of methods of ordination. Vegetatio 30: 15–32.

Fasham, M.J.R. 1977. A comparison of nonmetric multidimensional scaling, principal components and reciprocal averaging for the ordination of simulated coenoclines, and coenoplanes. Ecology 58: 551–561.

Gauch, H.G.Jr. & R.H., Whittaker. 1972. Coenocline simulation. Ecology 53: 446–451.

Gauch, H.G.Jr. & R.H., Whittaker. 1976. Simulation of community patterns. Vegetatio 33: 13–16.

Gauch, H.G.Jr., G.B., Chase & R.H., Whittaker. 1974. Ordination of vegetation samples by Gaussian species distribution. Ecology 55: 1382–1390.

Gauch, H.G.Jr., R.H., Whittaker & T.R., Wentworth. 1976. A comparative study of reciprocal averaging and other ordination techniques. J. Ecol. 65: 157–174.

Hill, M.O. 1973. Reciprocal averaging; an eigenvector method of ordination. J. Ecol. 61: 237–249.

Hill, M.O. 1974. Correspondence analysis: a neglected multivariate method. J. Roy. Statist. Soc. Ser. C (Applied Statistics) 23: 340–354.

Hill, M.O., R.G.H., Bunce & M.W., Shaw. 1975. Indicator species analysis, a divisive polythetic method of classification, and its application to a survey of native pinewoods of Scotland. J. Ecol. 63: 597–614.

Ihm, P. & H.van, Groenewoud. 1975. A multivariate ordering of vegetation data based on Gaussian type gradient response curves. J. Ecol. 63: 767–777.

Kendall, D.G. 1971. Seriation from abundance matrices. In F.R., Hodson, D.G., Kendall and P., Tăutu (eds.). Mathematics in the Archaeological and Historical Sciences, p. 215–251. Edinburgh University Press, Edinburgh.

Kruskal, J.B. 1964a. Multidimensional scaling by optimizing goodness of fit to a nonmetric hypothesis. Psychometrika 29: 1–27.

Kruskal, J.B. 1964b. Nonmetric multidimensional scaling: a numerical method. Psychometrika 29: 115–129.

Lefkovitch, L.P. 1976. Hierarchical clustering from principal co-ordinates: an efficient method for small to very large number of objects. Mathematical Biosciences 31: 157–174.

Lingoes, J.C. 1972. A general survey of the Guttman-Lingoes program series. In R.N., Shepard, A.K., Romney & S.B., Nerlove (eds.): Multidimensional Scaling. Volume 1. Theory, p. 49–68. Seminar Press, New York.

Noy-Meir, I. & R.H., Whittaker. 1978. Recent developments in continuous multivariate techniques. In R.H., Whittaker (ed.): Ordination of Plant Communities, p. 337–378. Junk, The Hague.

Prentice, I.C. 1977. Non-metric ordination methods in ecology. J. Ecol. 65: 85–94.

Sammon, J.W.Jr. 1969. A nonlinear mapping for data structure analysis. IEEE Transactions on Computers C-18: 401–409.

Sibson, R. 1971. Some thoughts on sequencing methods. In F.R., Hodson, D.G., Kendall and P., Tăutu (eds.): Mathematics in the Archaeological and Historical Sciences p. 263–266. Edinburgh University Press, Edinburgh.

Sibson, R. 1972. Order invariant methods for data analysis. J. Roy. Statist. Soc. Ser. B 34: 311–349.