If neither of these is the document you are looking for, could you provide more context? For example, is it a about "Einstein-Maxwell-Higgs" or perhaps a mathematical work referencing the MR2739807 (53122) index?
2. Research from Universitas Jenderal Soedirman (Postal Code 53122)
The identifier "" most likely refers to the IEEE document "The effects of power-line disturbances on consumer electronic equipment" or research emerging from Purwokerto, Indonesia (postal code 53122) .