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####                                     License and Permissions                                     ####
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#  Herschel/SPIRE Spectral Feature Finder: A program to extract significant spectral features 
#  from SPIRE spectral data. Copyright (C) 2020 (authors listed below).
#
#  This program is free software: you can redistribute it and/or modify it under the terms 
#  of the GNU General Public License as published by the Free Software Foundation, 
#  either version 3 of the License, or any later version.
#
#  This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
#  without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#  See the GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License along with this program.
#  If not, see http://www.gnu.org/licenses/gpl-3.0.en.html
#  
#  Acknowledging or Citing the Feature Finder Software or Products: 
#  If you plan to use this notebook for research or work publications we ask that you 
#  please cite the following Feature Finder Paper:
#  
#  * R Hopwood, I Valtchanov, L D Spencer, J Scott, C Benson, N Marchili,
#    N Hładczuk, E T Polehampton, N Lu, G Makiwa, D A Naylor, B G Gom, G Noble,
#    M J Griffin, The Herschel SPIRE Fourier Transform Spectrometer Spectral
#    Feature Finder I. The Spectral Feature Finder and Catalogue, Monthly
#    Notices of the Royal Astronomical Society, Volume 496, Issue 4, August
#    2020, Pages 4874–4893, https://doi.org/10.1093/mnras/staa1612
#  
#  * and provide link and refer to DOI https://doi.org/10.5270/esa-lysf2yi