Publications with shared reference: Lanthanoid Single-Ion Magnets Based on Polyoxometalates with a 5-fold Symmetry: The Series [LnP<sub>5</sub>W<sub>30</sub>O<sub>110</sub>]<sup>12–</sup> (Ln<sup>3+</sup> = Tb, Dy, Ho, Er, Tm, and Yb)