Gamificació i crowdsourcing per als mapes de Ms <a href="http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=49&p=1&f=G&l=50&d=PG01&S1=%2820121213.PD.+AND+Microsoft.AS.%29&OS=PD/20121213+AND+AN/Microsoft&RS=%28PD/20121213+AND+AN/Microsoft%29">http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=49&p=1&f=G&l=50&d=PG01&S1=%2820121213.PD.+AND+Microsoft.AS.%29&OS=PD/20121213+AND+AN/Microsoft&RS=%28PD/20121213+AND+AN/Microsoft%29</a><br>
<br>Raf<br>