Added munson_thurber_1997
Added munson_thurber_1997

Former-commit-id: 98ae7d5c9582924c9a2afe26827ae9be0c156b66 [formerly e010b2e124c481a4e95000f2c932dc1f98aa3cde]
Former-commit-id: 5f413d1aa2ce5b7b48583e9379b85f19a18bd547
gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine,gem/oq-engine