1. Geologic map of the Pine Grove-Blawn Mountain area, Beaver County, Utah;Abbott,1983
2. Lower Cambrian trilobites and biostratigraphy of Scandinavia;Ahlberg;Lund Publications in Geology,1984
3. Middle Cambrian to Middle Ordovician cyclic sedimentation, southern Rocky Mountains of Alberta;Aitken;Bulletin of Canadian Petroleum Geology,1966
4. Revised models for depositional Grand Cycles, Cambrian of the southern Rocky Mountains;Aitken;Bulletin of Canadian Petroleum Geology,1978
5. Generalizations about Grand Cycles;Aitken,1981