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phenomenon Schalke 04, Düsseldorf 1973, ISBN 3-7700-0365-9.
Olivier Kruschinski: Blue and
white for a lifetime. A
season with Schalke,
Herten 2005, ISBN 3-938152-04-4...
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Txema Olleta,
Bertomeu Tugores,
Jorge Lozano, Pepe Escrig; and Anja
Kruschinski as Tresourer. In the 7th EQUO ****embly, Mar González y Jose Ramón Becerra...