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Adler, Ronald J.; Casey, Brendan; Jacob, Ovid C. (1995). “Vacuum catastrophe: An elementary exposition of the cosmological constant problem”. 《American Journal of Physics》 63 (7): 620–626. Bibcode:1995AmJPh..63..620A. doi:10.1119/1.17850. ISSN0002-9505.
Adler, Ronald J.; Casey, Brendan; Jacob, Ovid C. (1995). “Vacuum catastrophe: An elementary exposition of the cosmological constant problem”. 《American Journal of Physics》 63 (7): 620–626. Bibcode:1995AmJPh..63..620A. doi:10.1119/1.17850. ISSN0002-9505.