AVOURIS N, 2004, P 2 INT WORKSH DES C, P13;CASAMAYOR A, 2009, COMPUT EDUC, V53, P1147, DOI 10.1016/J.COMPEDU.2009.05.025;CHAN CKK, 2011, INT J COMP-SUPP COLL, V6, P147, DOI 10.1007/S11412-011-9121-0;CHOUNTA IRENE-ANGELICA, 2012, COLLABORATION AND TECHNOLOGY. PROCEEDINGS OF THE 18TH INTERNATIONAL CONFERENCE, CRIWG 2012, P145, DOI 10.1007/978-3-642-33284-5_13;CHOUNTA IA, 2014, IEEE INT CONF ADV LE, P283, DOI 10.1109/ICALT.2014.88;DE GROOT R., 2007, P 8 INT C COMP SUPP, P168;CONSTANTINO-GONZALEZ MDLA, 2007, COMPUT-SUPP COLLAB L, V9, P87, DOI 10.1007/978-0-387-71136-2_6;DILLENBOURG P., 1999, COLLABORATIVE LEARNI, P1;DILLENBOURG P., 2002, 3 WORLDS CSCL CAN WE, P61;DILLENBOURG P, 2010, NEW SCIENCE OF LEARNING: COGNITION, COMPUTERS AND COLLABORATION IN EDUCATION, P525, DOI 10.1007/978-1-4419-5716-0_26;DILLENBOURG P, 2009, TECHNOLOGY-ENHANCED LEARNING: PRINCIPLES AND PRODUCTS, P3, DOI 10.1007/978-1-4020-9827-7_1;DUVAL E., 2011, P 1 INT C LEARN AN K, P9, DOI 10.1145/2090116.2090118, DOI 10.1145/2090116.2090118;DYCKHOFF AL, 2012, EDUC TECHNOL SOC, V15, P58;FERGUSON R, 2012, INT J TECHNOL ENHANC, V4, P304, DOI 10.1504/IJTEL.2012.051816;GIORGINO T, 2009, J STAT SOFTW, V31, P1, DOI 10.18637/JSS.V031.I07;HARRER A, 2006, USER MODEL USER-ADAP, V16, P175, DOI 10.1007/S11257-006-9007-4;KAHRIMANIS G., 2011, CONNECTING COMPUTER, V1, P446;KAHRIMANIS G, 2012, STUD COMPUT INTELL, V408, P295;KAHRIMANIS G, 2011, STUD COMPUT INTELL, V350, P93;KAHRIMANIS G, 2009, LECT NOTES COMPUT SC, V5794, P267, DOI 10.1007/978-3-642-04636-0_25;MARTINEZ-MONES A, 2011, COMPUT-SUPP COLLAB L, P269, DOI 10.1007/978-1-4419-7710-6_13;RODRIGUEZ-TRIANA M. J., 2014, BRIT J ED TECHNOLOGY;SCHUMMER T, 2005, CSCL 2005: COMPUTER SUPPORTED COLLABORATIVE LEARNING 2005: THE NEXT 10 YEARS, PROCEEDINGS, P567;SOLLER A., 2005, INT J ARTIFICIAL INT, V15, P261;SPADA H, 2005, CSCL 2005: COMPUTER SUPPORTED COLLABORATIVE LEARNING 2005: THE NEXT 10 YEARS, PROCEEDINGS, P622;STAHL G, 2002, CSCL, P169;STAHL G., 2007, P 8 INT C COMP SUPP, P652;STAHL G, 2006, CAMB HANDB PSYCHOL, P409;SUTHERS DD, 2010, INT J COMP-SUPP COLL, V5, P5, DOI 10.1007/S11412-009-9081-9;TEAM R. C., 2012, R LANG ENV STAT COMP;VAN LEEUWEN A, 2013, COMPUT HUM BEHAV, V29, P1377, DOI 10.1016/J.CHB.2013.01.028;VANLEEUWEN A., 2014, COMPUTERS ED;VOYIATZAKI E., 2008, P 6 INT C NETW LEARN, P849;VOYIATZAKI E, 2014, EDUC INF TECHNOL, V19, P129, DOI 10.1007/S10639-012-9203-2;WEINBERGER A, 2006, COMPUT EDUC, V46, P71, DOI 10.1016/J.COMPEDU.2005.04.003;WICHMANN A., 2009, CSCL 09, P646;WOO Y., 2007, INTERNET AND HIGHER EDUCATION, V10, P15, DOI 10.1016/J.IHEDUC.2006.10.005