Quizá quiso decir: IFIP International Federation for Information Processing, 1868-4238 ; 167 Applied Mathematical Sciences, 0066-5452 ; 167 International Series in Operations Research & Management Science, 0884-8289 ; 167 Handbook of Experimental Pharmacology, 0171-2004 ; 167 Recent Results in Cancer Research, 0080-0015 ; 167 Physics of Earth and Space Environments, 1610-1677 Physics of Earth and Space Environments, 1610-1677 Studies in Fuzziness and Soft Computing, 1434-9922 ; 167 Physics of Earth and Space Environments, 1610-1677 Studies in Computational Intelligence, 1860-949X ; 167 Lecture Notes in Mathematics, 0075-8434 ; 1670 Fundamental Theories of Physics ; 167 Physics of Earth and Space Environments, 1610-1677 Physics of Earth and Space Environments, 1610-1677 Springer Series in Solid-State Sciences, 0171-1873 ; 167 Communications in Computer and Information Science, 1865-0929 ; 167 Springer Series in Optical Sciences, 0342-4111 ; 167 Lecture Notes in Electrical Engineering, 1876-1100 ; 167 Advances in Intelligent Systems and Computing, 2194-5357 ; 167 Springer Series in Materials Science, 0933-033X ; 167