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- [2] STRUCTURAL GEOLOGY OF NORTHWESTERN OHIO AAPG BULLETIN-AMERICAN ASSOCIATION OF PETROLEUM GEOLOGISTS, 1987, 71 (09): : 1113 - 1113
- [3] Sylvania sandstone of northwestern Ohio BULLETIN OF THE GEOLOGICAL SOCIETY OF AMERICA, 1936, 47 (1/4): : 253 - 265
- [7] SPECTRAL ANALYSIS OF GRAVITATIONAL ANOMALIES IN NORTHWESTERN OHIO BULLETIN OF THE AMERICAN PHYSICAL SOCIETY, 1977, 22 (08): : 1038 - 1039