1. W. P . 0TNeill, Membrane s y s t e m s . I n , Controlled Release Technologies: Methods, Theory and Applications, Vol.I(A. G. K y d o n i e u s , E d . ) , CRC P r e s s ,Boca Raton, FL, 1980, p p .129-182.
2. Principles of the design and operation of generic osmotic pumps for the delivery of semisolid or liquid drug formulations
3. F . T h e e u w e s , Delivery of active a g e n t s b y osmosis. I n ,Controlled Release Technologies: Methods, Theory and Applications, Vol.II(A. G. K y d o n i e u s , E d . ) CRC P r e s s ,Boca R a t o n , F L , 1980, p p .195-205.