%0 Journal Article %T The performance of collars on scour reduction at tandem piers aligned with different skew angles %A Sargol Memar %A Mohammad Zounemat-Kermani %A Beheshti, Aliasghar %A مجید رحیم پور %A Giovanni De Cesare %A Anton J. Schleiss %J Marine Georesources and Geotechnology %@ 1064-119X %D 2020