Unsworth, B A The longevity of thermoactinomycete endospores in natural substrates. [electronic resource] - The Journal of applied bacteriology Feb 1977 - 45-52 p. digital Publication Type: Historical Article; Journal Article ISSN: 0021-8847 Standard No.: 10.1111/j.1365-2672.1977.tb00668.x doi Subjects--Topical Terms: EnglandFossilsHistory, AncientMicromonosporaceae--isolation & purificationPaleontologySoil MicrobiologySpores, Bacterial--isolation & purificationWater Microbiology