Journal article (2015) - S Ochoa-Rodriguez (author), L-P Wang (author), S Kroll (author), I Tchiguirinskaia (author), C Onof (author), P Willems (author), J.A.E. ten Veldhuis (author), A Gires (author), RD Pina (author), R. Reinoso Rondinel (author), G. Bruni (author), A Ichiba (author), S. Gaitan Sabogal (author), E. Cristiano (author), J van Assel (author)