Knox D, Gibson L, Zusman ME, Gallmeier C. Why college students end relationships. Coll Stud J. 1997 Jan 1;31(4):449-52.
Wolowacz SE, Yon Hin BFY, Lowe CR. Covalent electropolymerisation of glucose oxidase in polypyrrole. Anal Chem. 1992;64(14):1541.
Morant SV, Gnanasakthy A. A new approach to the mathematical formulation of lactation curves. Anim Prod Sci. 1989 Oct;49(2):151-62.