44 Magnum - Encyclopaedia Metallum: The Metal Archives

Angra - Reaching Horizons - Encyclopaedia Metallum: The Metal

20 Best Heavy Metal Music Books of All Time - BookAuthority

44 MAGNUM discography (top albums) and reviews

44 Magnum - Live Act II - Encyclopaedia Metallum: The Metal Archives

Crucial Blast On-line Store

Dead End (band) - Alchetron, The Free Social Encyclopedia

music review/Interviews – Metal lab Reviews/ Interviews

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the MATS LEVEN official website

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LIVE&RARE 1982 BIGINNING THE BAND/44MAGN - CD