[1] Byung-Suko, Young-Sang Cho, Hyun-Ku Rhee., "Controlled release of urea from rosin- coated fertilizer particles",Ind. Eng. Chem. Res., 35 (1), 250-257 (1996). [2] Ouriemchi, E. M., Vergnamd, J. M., "Prediction of in-vivo blood level with controlled- release dosage forms", J. Pharm.Pharmacol., 48 (1), 390-394 (1996). [3] Siegel, R. A., Kost, J., Langer, R., "Mechanistic studies of macromolecular drug release from macroporous", J., Controlled Release, 8 (1), 223-236 (1989). [4] Peppas, V. A., Khare, A. R., "Preparation, structure and diffusional behavior of hydrogeis in controlled release", Advanced Drug Delivery Reviews, 11 (1), 1-35 (1993). [5] Ma, J. T., Wu, L., Qi, G. G., "Radiation crosslinked poly (vinylmethysiloxane) for levonorgestrel relivery system", J.Polym Sci. Lett., 26 (1), 195-199 (1988). [6] Higuchi, T., "Mechanism of sustained-action medication",J. Pharm. Sci., 50 (1), 874- 875 (1961). [7] Wang, S. T., Yang, Z. S., Zhu, Y. X., "Kinetics of diffusioncontrolled drug matrices release system", Chinese J. Chem.Eng., 1 (1), 10-17 (1993). [8] Siegel, R. A., "A Laplace transform technique for calculating diffusion time lags", J. Membr. SCi., 26 (1), 251-262(1986). |