1. Calcium in smooth muscle sarcoplasmic reticulum in situ. Conventional and X-ray analytical electron microscopy;Popescu;J. Cell Biol.,1975
2. Cytochemical study of the intracellular calcium distribution in smooth muscle;Popescu,1977
3. Electron probe analysis of vascular smooth muscle. Composition of mitochondria, nuclei, and cytoplasm;Somlyo;J. Cell Biol.,1979
4. Intracellular distribution of calcium in smooth muscle: facts and artifacts. Correlation of cytochemical, biochemical and X-ray micro-analytical findings;Popescu;Morphology and Embryology (Bucharest),1980
5. Calcium in the sarcoplasmic reticulum of smooth muscle. X-ray microanalysis of oxalate-treated muscle fibres;Popescu,1982