@article{KoetzlerRaffiusLoidletal.1979, author = {J. K{\"o}tzler and G. Raffius and Alois Loidl and C. M. E. Zeyen}, title = {Singlet-groundstate magnetism in TbP: I. Static magnetic properties}, journal = {Zeitschrift f{\"u}r Physik B Condensed Matter and Quanta}, volume = {35}, number = {2}, pages = {125 -- 132}, doi = {10.1007/bf01321238}, year = {1979}, }