Quizá quiso decir: Microsystems, 1389-2134 Aquilafuente ; 138. Aquilafuente ; 138. Atmospheric and Oceanographic Sciences Library, 1383-8601 ; 18 Applied Optimization, 1384-6485 ; 62 Combinatorial Optimization, 1388-3011 ; 12 Advances in Database Systems, 1386-2944 ; 39 Advances in Database Systems, 1386-2944 ; 37 New ICMI Study Series, 1387-6872 ; 11 New ICMI Study Series, 1387-6872 ; 12 Operations Research/Computer Science Interfaces Series, 1387-666X ; 45 Advances in Database Systems, 1386-2944 ; 35 Economics of Science, Technology and Innovation, 1381-0480 ; 30 Handbooks of Sociology and Social Research, 1389-6903 Electronic Materials: Science and Technology, 1386-3290 ; 9 Applied Optimization, 1384-6485 ; 91 Operations Research/Computer Science Interfaces Series, 1387-666X ; 29 Combinatorial Optimization, 1388-3011 ; 16 Developments in Mathematics, 1389-2177 ; 12 Combinatorial Optimization, 1388-3011 ; 17