1. Remote Sensing Unit - Department of Physics and Optical Center, University of Beira Interior, Av. Marquês D'Ávila e Bolama 6201-001 Covilhã, Portugal,
2. Remote Sensing Unit - Department of Physics and Optical Center, University of Beira Interior, Av. Marquês D'Ávila e Bolama 6201-001 Covilhã, Portugal
3. Textile and Paper Materials Unit - Department of Textile Science and Technology, University of Beira Interior, Av. Marquês D'Ávila e Bolama 6201-001 Covilhã, Portugal