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Aguilar+%28Colo.%29 and Aguilar+%28Colo.%29 and Aguilar+%28Colo.%29 and Coal+mines+and+mining by Pastorelli%25252C%2BAbe and Tapoya%25252C%2BJohn and Tapoya%25252C%2BJohn and Pastorelli%25252C%2BAbe and Pastorelli%25252C%2BAbe
- UC Boulder