1. University of Veterinary Medicine
2. Unit of Physiology and Biophysics
3. Vienna
4. Austria
5. PMOD/WRC
6. Davos Dorf
7. Switzerland
8. Medical Univ. Innsbruck
9. Innsbruck
10. Royal Meteorological Institute of Belgium
11. Observations
12. Brussels
13. Belgium
14. Royal Belgian Institute for Space Aeronomy
15. Bulgarian Academy of Sciences
16. Stara Zagora
17. Bulgaria
18. Metorological and hydrological institute of Croatia
19. Metorological and hydrological institute of Croati
20. Croatia
21. Czech Hydrometeorological Institute
22. Solar and Ozone Department
23. Hradec Kralove
24. Czech Republic
25. Danish Meteorological Institute
26. Copenhagen
27. Denmark
28. Tartu Observatory
29. Tartumaa
30. Estonia
31. Finnish Meteorological Institute
32. Helsinki
33. Finland
34. Météo-France
35. Toulouse Cedex
36. France
37. Bundesamt fur Strahlenschutz Neuherberg
38. Section for Optical Radiation
39. Neuherberg
40. Germany
41. sglux GmbH
42. Berlin
43. Aristotle University of Thessaloniki
44. Greece
45. Hungarian Meteorological Service
46. Marczell György Main Observatory
47. Budapest
48. Hungary
49. Sapienza Universita’ di Roma
50. Physics Department
51. Rome
52. Italy
53. ISPRA
54. Physical Agents Unit
55. ARPA Valle d'Aosta loc
56. Saint-Christophe
57. LaMMA Consortium
58. Institute of Biometeorology of the National Research Council
59. Sesto Fiorentino
60. CNR-IBIMET
61. Florence
62. ARPA di Vicenza
63. Vicenza
64. National Research Council
65. Institute of Atmospheric Sciences and Climate
66. Bologna
67. ENEA
68. Laboratory for Observations and Analyses of the Earth and Climate
69. Lycée Classique de Diekirch
70. Computarium and meteoLCD
71. Diekirch
72. Luxembourg
73. University of Malta
74. Institute for Sustainable Energy
75. Marsaxlokk
76. Malta