"S. Stark,O. Heyer,A. Vasiliev,A. Oosawa,H. Tanaka,T. Lorenz","Thermodynamic Properties of the Field-Induced N?el Order of TlCuCl<sub>3</sub>",,"J. Magn. & Magn. Mater.",,"Vol. 310",,"pp. 1374?1376",2007,