RT Journal Article T1 Comment on ‘‘Viable singularity-free f(R) gravitywithout a cosmological constant’’ A1 Cruz Dombriz, Álvaro de la A1 Dobado González, Antonio A1 López Maroto, Antonio PB American Physical Society SN 0031-9007 YR 2009 FD 2009-10-23 LK https://hdl.handle.net/20.500.14352/43810 UL https://hdl.handle.net/20.500.14352/43810 LA spa NO © 2009 The American Physical Society DS Docta Complutense RD 7 abr 2025