Ray, D. Sojourn times and the exact Hausdorff measure of the sample path for planar Brownian motion. (English) Zbl 0119.14602 Trans. Am. Math. Soc. 106, 436-444 (1963). PDFBibTeX XMLCite \textit{D. Ray}, Trans. Am. Math. Soc. 106, 436--444 (1963; Zbl 0119.14602) Full Text: DOI
Ray, Daniel Stationary Markov processes with continuous paths. (English) Zbl 0072.35102 Trans. Am. Math. Soc. 82, 452-493 (1956). PDFBibTeX XMLCite \textit{D. Ray}, Trans. Am. Math. Soc. 82, 452--493 (1956; Zbl 0072.35102) Full Text: DOI
Ray, Daniel On spectra of second-order differential operators. (English) Zbl 0058.32901 Trans. Am. Math. Soc. 77, 299-321 (1954). PDFBibTeX XMLCite \textit{D. Ray}, Trans. Am. Math. Soc. 77, 299--321 (1954; Zbl 0058.32901) Full Text: DOI