<sup>57</sup>Fe and<sup>151</sup>Eu Mössbauer spectroscopy and magnetization studies of Eu(Fe<sub>0.89</sub>Co<sub>0.11</sub>)<sub>2</sub>As<sub>2</sub>and Eu(Fe<sub>0.9</sub>Ni<sub>0.1</sub>)<sub>2</sub>As<sub>2</sub>
New journal of physics