600 - Technology 620 - Engineering & allied operations 2,606 900 - History & geography 1,912 700 - The arts; fine & decorative arts 1,775 333 - Economics of land & energy 1,434 000 - Computer science, information & general works 1,061 more ... 363 - Other social problems & services 842 330 - Economics 662 610 - Medicine & health 645 380 - Commerce, communications & transportation 637 580 - Plants (Botany) 423 140 - Specific philosophical schools 398 630 - Agriculture & related technologies 331 576 - Genetics & evolution 291 370 - Education 282 320 - Political science 271 500 - Natural sciences & mathematics 215 540 - Chemistry & allied sciences 206 551 - Geology, hydrology & meteorology 194 300 - Social sciences 179 720 - Architecture 156 340 - Law 151 100 - Philosophy & psychology 135 414 - Phonology & phonetics 123 581 - Specific topics in natural history 123 800 - Literature & rhetoric 119 658 - General management 112 530 - Physics 109 400 - Language 102 170 - Ethics 74 304 - Factors affecting social behavior 63 410 - Linguistics 46 612 - Human physiology 45 301 - Sociology & anthropology 41 780 - Music 32 615 - Pharmacology & therapeutics 29 200 - Religion 27 361 - Social problems & social welfare in general 26 657 - Accounting 22 791 - Public performances 21 770 - Photography, photographs & computer art 17 120 - Epistemology, causation & humankind 13 350 - Public administration & military science 12 550 - Earth sciences 9 650 - Management & auxiliary services 8 160 - Logic 7 364 - Criminology 7 520 - Astronomy & allied sciences 7 336 - Public finance 6 297 - Islam, Babism & Bahai Faith 5 360 - Social problems & services; associations 5 590 - Animals (Zoology) 3 398 - Folklore 2 920 - Biography, genealogy & insignia 1 see all ... less ...

English 4,705 Italian 30 Portuguese 23 Spanish 20 No linguistic content 8 Slovenian 4 more ... Norwegian 3 Finnish 1 Lithuanian 1 Tamil 1 Turkish 1 see all ... less ...

Directory of Open Access Books

Hernández-Callejo, Luis 7 Lytras, Miltiadis 7 Zavadskas, Edmundas Kazimieras 7 Afonso, Alexandre M. 6 Baños Navarro, Raúl 6 Carbone, Giuseppe 6 more ... Hoff, Inge 6 Montoya, Francisco G. 6 Queiroz Zepka, Leila 6 Sultan, Muhammad 6 Varzakas, Theodoros 6 Ferrás, Luís L. 5 Garrote, Luis 5 Gasparetto, Alessandro 5 Gil Bravo, Antonio 5 González Lezcano, Roberto Alonso 5 Jacob-Lopes, Eduardo 5 Kosyachenko, Leonid A. 5 Lynn, Theo 5 Mooney, John G. 5 Nesmachnow, Sergio 5 Pantelakis, Spiros 5 Schabowicz, Krzysztof 5 Silva, Francisco J. G. 5 Xiao, Yue 5 Yadav, Raghvendra Singh 5 Yepes, Víctor 5 de Brito, Jorge 5 Ahmad, Zaki 4 Aliofkhazraei, Mahmood 4 Andrea Serra, Pier 4 Antonios Tsourdos 4 Antuchevi?ien?, Jurgita 4 Aronov, Boris S. 4 Bedon, Chiara 4 Borge Diez, David 4 Bruno, Giovanni 4 Camacho, Ana M. 4 Ceccarelli, Marco 4 Chen, Jen-Tsung 4 Chen, Wei-Hsin 4 Chen, Wenxue 4 Colmenar Santos, Antonio 4 Di Schino, Andrea 4 Dong, Longjun 4 Díez-Pascual, Ana 4 Edison, Thomas A. 4 Fang, Zhen 4 Farahnakian, Fahimeh 4 Faroughi, Salah Aldin 4 Felipe Gonzalez Toro 4 Fuentes, Sigfredo 4 Giansanti, Daniele 4 Guelfi, Adilson 4 Heikkonen, Jukka 4 Izuru Takewaki 4 Kim, DaeEun 4 Królczyk, Grzegorz 4 Kunze, Rolf-Ulrich 4 Kuriqi, Alban 4 Lai, Chun Sing 4 Leonowicz, Zbigniew 4 Meen, Teen-­Hang 4 Möser, Kurt 4 Oertel, Herbert 4 Pabulo H. Rampelotto 4 Pamučar, Dragan 4 Pinho, Pedro 4 Pinto Fernandes, Célio 4 Pontes, Elvis 4 Ricardo Hernández, Luis 4 Rosales Asensio, Enrique 4 Rubio, Eva M. 4 Shamshiri, Redmond R. 4 Show, Pau Loke 4 Silva, Ana Catarina 4 Silva, Anderson 4 Strohmayer, Andreas 4 Treanta, Savin 4 Wang, Wei 4 Wu, Yue 4 Yigitcanlar, Tan 4 Zhao, Yanlin 4 Abd-Alhameed, Raed A 3 Ahamed, Md Shamim 3 Aldás Carrasco, Miguel Fernando 3 Amaratunga, Dilanthi 3 Amirkhanian, Serji 3 Anvari-Moghaddam, Amjad 3 Armaghani, Danial Jahed 3 Arosio, Paolo 3 Assaf, Jean-Claude 3 Bacciocchi, Michele 3 Bauer, Christian 3 Baveye, Philippe C. 3 Bedia, Jorge 3 Belver, Carolina 3 Biernat, Krzysztof 3 Bizon, Nicu 3 Blanco, Ignazio 3 see all ... less ...

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