APA (7th ed.) Citation

V.l.n.r: ?, Michels, Gerhard, Röell, ?, Verschure, ?, ?

Chicago Style (17th ed.) Citation

V.l.n.r: ?, Michels, Gerhard, Röell, ?, Verschure, ?, ?

MLA (8th ed.) Citation

V.l.n.r: ?, Michels, Gerhard, Röell, ?, Verschure, ?, ?

Warning: These citations may not always be 100% accurate.