Shipping routes through core habitat of endangered sperm whales along the Hellenic Trench, Greece: Can we reduce collision risks? Frantzis, Alexandros ; Leaper, Russell ; Alexiadou, Paraskevi ; Prospathopoulos, Aristides ; Lekkas, Dimitrios Abstract Publication: PLoS ONE Pub Date: February 2019 DOI: 10.1371/journal.pone.0212016 Bibcode: 2019PLoSO..1412016F