Mrk 501

[References]

Whipple: Quinn, J. et al., ApJ 456, L83 (1996)
            Quinn, J. et al., ApJ 518, 693-698 (1999)

HEGRA: Bradbury, S.M. et al., A&A 320, L5-L8 (1997)
            Aharonian, F. et al., A&A 327, L5-L8 (1997)
            Kranich, D. et al., Astropart. Phys. 12, 65-74 (1999)
            Aharonian, F.A. et al., A&A 342, 69-86 (1999)
            Aharonian, F.A. et al., A&A 349, 11-28 (1999)
            Aharonian, F. et al., A&A 349, 29-44 (1999)
            Aharonian, F. et al., ApJ 546, 898-902 (2001)

7TA: Hayashida, N. et al., ApJ 504, L71 (1998)
       Yamamoto, T. et al. Astropart. Phys. 11, 141 (1999)

CAT: Djannati-Atai , A. et al., A&A 350, 17-24 (1999)
        Piron, F. et al., A&A 374, 895-906 (2001)

Milagrito: Atkins, R. et al., ApJ 525, L25-L28 (1999)

Durham: Chadwick, P.M. et al., J. Phys. G: Nucl. Phys. 25, 1749-1753 (1999)

CAT: Piron, F. et al., Astron. Astrophys. 374, 895-906 (2001)

CELESTE: Smith, D.A. et al., Nuclear Physics B Proc. Suppl. 80, 163-172 (2000)

Tibet AS-gamma: Amenomori, M. et al., ApJ 532, 302-307 (2000)

MAGIC: Albert, J. et al., ApJ 669, 862-883 (2007)
           Albert, J. et al., ApJ 669,, L17 (2007)
           F.Goebel et al., 30th ICRC (2007) / arXiv:0709.2032 [astro-ph]

MAGIC/H.E.S.S.: M.Hayashida et al., 30th ICRC (2007) / arXiv:0710.4057 [astro-ph] p.149

VERITAS: S.Fegan et al., 30th ICRC (2007) / arXiv:0709.3659 [astro-ph]

TACTIC: S. V. Godambe et al., arXiv:0804.1473 [astro-ph] (to appear in J. Phys. G.)