text: * Gosse, John C., and Phillips, Fred M. (2001).  "Terrestrial in situ cosmogenic nuclides: Theory and application". Quaternary Science Reviews 20, 1475–1560.
  * Granger, Darryl E., Fabel, Derek, and Palmer, Arthur N. (2001).  "Pliocene-Pleistocene incision of the Green River, Kentucky, determined from radioactive decay of cosmogenic 26Al and 10Be in Mammoth Cave sediments". Geological Society of America Bulletin 113 (7), 825–836.