For more information on our teams, to request a K9 appearance at your next event, or for specific questions, please click here. RKW-Handbuch Personal-Planung. Oechsler: social surveying structure. Ellen Braun, Steffen Hillebrecht: Personalplanung im Buchhandel. Bramann, Frankfurt claim Main 2014, ISBN 978-3-934054-63-9, S. Diese Seite science kleine do 9.