This author has not been identified. Look up 'Bernardo M. Ábrego' in GoogleThis author has not been identified. Look up 'Oswin Aichholzer' in GoogleThis author has not been identified. Look up 'Silvia Fernández-Merchant' in GoogleThis author has not been identified. Look up 'Dan McQuillan' in GoogleThis author has not been identified. Look up 'Bojan Mohar' in GoogleThis author has not been identified. Look up 'Petra Mutzel' in GoogleThis author has not been identified. Look up 'Pedro Ramos 0001' in GoogleThis author has not been identified. Look up 'R. Bruce Richter' in GoogleThis author has not been identified. Look up 'Birgit Vogtenhuber' in Google