https://www.spectroexpo.com/session/start-date/2018-01-09T19:29:00+00:00https://www.spectroexpo.com/session/plenary/2021-03-04T17:36:42+00:00https://www.spectroexpo.com/session/ieee-sa-p4001-standards-for-characterization-and-calibration-of-hyperspectral-imaging-devices/2021-03-04T17:36:55+00:00