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Johan Hjelm is a senior specialist and project manager in wireless Web projects for Ericsson. He is an internationally recognized scientist, a regular contributor to standards development, and a frequent speaker at conferences. Johan is the author of eleven books on the wireless and metadata spaceHjelm, Johan is the author of 'Creating Location Services for the Wireless Web Professional Developer's Guide' with ISBN 9780471402619 and ISBN 0471402613.
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