Alessandro Cevrero Panagiotis Athanasopoulos Hadi Parandeh-Afshar Ajay K. Verma Seyed Hosein Attarzadeh Niaki Chrysostomos Nicopoulos Frank K. Gürkaynak Philip Brisk Yusuf Leblebici Paolo Ienne Field Programmable Compressor Trees: Acceleration of Multi-Input Addition on FPGAs. 2009 2 TRETS 2 http://doi.acm.org/10.1145/1534916.1534923 db/journals/trets/trets2.html#CevreroAPVNNGBLI09