1. Weibel, E. R. (1979),Stereological Methods, vol. 1,Practical Methods for Biological Morphometry, Academic, NY, NY.
2. Weibel, E. R. (1980),Stereological Methods, vol. 2,Theoretical Foundations, Academic, NY, NY.
3. Marchevsky, A. M., Gil, J., and Jeanty, H. (1987),Hum. Pathol. 18, 320.
4. Loud, A. V. (1987),Anal. Quant. Cytol. Histol. 9, 7.
5. Halgunset, J. (1984),J. Microsc. (UK)135, 325.