00401nam a2200121Ia 4500008004100000020001800041100002100059245008200080260004300162300002100205650002500226650002800251191111s9999    xx            000 0 und d  a9781107102743  aKnee, Raymond C.  cRaymond C. Knee.--aPositive approaches to optimal relationship development /  aUK :bCambridge University Pressc2016  axiii, 351 pages.  aAttachement behavior  aInterpersonal relations