@misc{indiciae60b732ac3766, title = {Fission-track dating of apatite and zircon: an interlaboratory comparison}, author = {Charles W. Naeser and Gerald T. Cebula}, year = {1978}, doi = {10.3133/ofr78108}, url = {https://pubs.usgs.gov/publication/ofr78108}, note = {Source identifier: ofr78108} }