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ACM:

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Springer:

The following copyright notice applies to all papers published in the Lecture Notes in Computer Science by Springer-Verlag, as mentioned in the Copyright Form. The Author may publish his/her contribution on his/her personal Web page provided that he/she creates a link to the above mentioned volume of LNCS at the Springer-Verlag server or to the LNCS series homepage, and that together with this electronic version it is clearly pointed out, by prominently adding "Copyright Springer-Verlag", that the copyright for this contribution is held by Springer.