1. Alo, R. A., Imler, L., Shapiro, H. L.:P-andz-embedded sets, Math. Ann.188, 13?22 (1970)
2. Blair, R. L.: Mappings that preserve realcompactness (to appear)
3. Lecture Notes in Mathematics;R. L. Blair,1974
4. Blair, R. L.: Additivity of the Hewitt realcompactification (to appear)
5. Blair, R. L., Hager, A. W.: Notes on the Hewitt realcompactification of a product (to appear)