Your search returned the following document:

1. Faster Coupon Collecting via Replication with Applications in Gossiping
   Petra Berenbrink, Tom Friedetzky, Robert Elsaesser, Lars Nagel, and Thomas Sauerwald
   In: 36th International Symposium on Mathematical Foundations of Computer Science (MFCS-11), Warsaw, Poland, 2011, 72-83