T. N. Hibbard,Some Combinatorial Properties of Certain Trees with Applications to Searching and Sorting, J.A.C.M. Vol. 9 (1962), pp. 13–29.
D. E. Knuth,The Art of Computer Programming. Vol. 3. Sorting and Searching, Addison-Wesley, 1973, pp. 406–457.
W. C. Lynch,More combinatorial properties of certain trees, Computer Journal Vol. 7 (1965), pp. 299–302.
J. L. Szwarcfiter and L. B. Wilson,Some properties of ternary trees, University of New-castle upon Tyne Technical Report No. 79, October 1975.
L. B. Wilson,The Analysis of Sequence Search Trees using Recurrence Relations, University of Newcastle upon Tyne Technical Report No. 76, October 1975.
P. F. Windley,Trees, Forests and Rearranging, Computer Journal, Vol. 3 (1966), pp. 84–88.