ALEXANDERALEXANDER, 2006, EDUCAUSE REV, V41, P33;ALTANOPOULOU P, 2015, EDUC TECHNOL SOC, V18, P511;ARAZY O, 2010, J AM SOC INF SCI TEC, V61, P1166, DOI 10.1002/ASI.21326;ARMELLINI A, 2010, BRIT J EDUC TECHNOL, V41, P922, DOI 10.1111/J.1467-8535.2009.01013.X;BAEZA-YATES R, 2006, INFORM RES, V11;BALAZS I., 2005, THESIS TU DRESDEN DR;BEERS PJ, 2007, LEARN INSTR, V17, P427, DOI 10.1016/J.LEARNINSTRUC.2007.04.002;BOS M. C., 1937, ACTA PSYCHOL, V3, P315, DOI 10.1016/S0001-6918(01)90007-1, DOI 10.1016/S0001-6918(01)90007-1;BRAVO C, 2008, INT J HUM-COMPUT ST, V66, P812, DOI 10.1016/J.IJHCS.2008.08.003;CARELL A., 2006, SELBSTSTEUERUNG PART, V37;CHATTI M. A., 2012, INT J TECHNOLOGY ENH;CHEN LW, 2012, BRIT J EDUC TECHNOL, V43, PE49, DOI 10.1111/J.1467-8535.2011.01251.X;COLLAZOS C. A., 2004, INTERNATIONAL JOURNAL OF COMPUTER APPLICATIONS IN TECHNOLOGY, V19, P151, DOI 10.1504/IJCAT.2004.004044;DENNEN V., 2007, DISTANCE EDUC DISTANCE ED, V28, P281;DILLENBOURG P., 1999, COLLABORATIVE LEARNI, P1;DOS B, 2013, KURAM UYGUL EGIT BIL, V13, P1335;EDDY PL, 2013, INNOV HIGH EDUC, V38, P253, DOI 10.1007/S10755-012-9239-7;ERKENS G, 2006, RUTG INV SYMP EDUC S, P233;FERREIRA A, 2009, INFORM RES, V14;FESSAKIS G, 2013, EDUC TECHNOL SOC, V16, P243;FETTKE P, 2006, WIRTSCHAFTSINF, V48, P257, DOI 10.1007/S11576-006-0057-3;CAPPONI MF, 2010, EDUC TECHNOL SOC, V13, P40;GEYKEN A, 1998, MULTIMEDIA TELELEARN, P181;HUANG WHD, 2010, INTERACT LEARN ENVIR, V18, P233, DOI 10.1080/10494820.2010.500520;IANDOLI L, 2014, INT J HUM-COMPUT ST, V72, P298, DOI 10.1016/J.IJHCS.2013.08.006;RODRIGUEZ-TRIANA MJ, 2015, BRIT J EDUC TECHNOL, V46, P330, DOI 10.1111/BJET.12198;KALB H., 2011, LECT NOTES INFORM LN;KERRES M., 2011, ONLINE LERNEN PLANUN, P263;KIRSCHNER PA, 2013, EDUC PSYCHOL-US, V48, P169, DOI 10.1080/00461520.2013.804395;LEE H, 2014, INT J ADV CORPORATE, V7, P10, DOI DOI 10.1016/J.RSER.2014.07.165;MURPHY E, 2004, BRIT J EDUC TECHNOL, V35, P421, DOI 10.1111/J.0007-1013.2004.00401.X;PAULEEN DJ, 2001, J INFORM TECHNOL, V16, P205, DOI 10.1080/02683960110100391;PERREZ M., 2006, PADAGOGISCHE PSYCHOL, P357;POMBO L, 2010, EDUC MEDIA INT, V47, P217, DOI 10.1080/09523987.2010.518814;POZZI F, 2007, INNOV EDUC TEACH INT, V44, P169, DOI 10.1080/14703290701240929;RENELAND-FORSMAN L, 2012, TEXT TALK, V32, P349, DOI 10.1515/TEXT-2012-0017;RICE DANIEL J, 2007, COMPUTER SUPPORTED COOPERATIVE WORK: THE JOURNAL OF COLLABORATIVE COMPUTING, V16, P567, DOI 10.1007/S10606-007-9070-3;RIETZE M., 2016, MULTIKONFERENZ WIRTS, P567;SCHOOP E., 2004, ERFAHRUNGEN VIRTUAL, V1;SILVEIRA IF, 2013, J INF TECHNOL EDUC-R, V12, P225;SOLLER A, 2004, J COMPUT ASSIST LEAR, V20, P212, DOI 10.1111/J.1365-2729.2004.00081.X;STAHL G, 2006, INT J COOP INF SYST, V15, P157, DOI 10.1142/S0218843006001323;SWAN KAREN, 2006, J ASYNCHRONOUS LEARN, V10, P45;TAN SC, 2006, EDUC MEDIA INT, V43, P347, DOI 10.1080/09523980600926374;THAGARD P, 1997, NOUS, V31, P242, DOI 10.1111/0029-4624.00044;TRENTIN G, 2009, J COMPUT ASSIST LEAR, V25, P43, DOI 10.1111/J.1365-2729.2008.00276.X;WALTHALL CJ, 2011, J MECH DESIGN, V133, DOI 10.1115/1.4004115;WEINBERGER A, 2006, COMPUT EDUC, V46, P71, DOI 10.1016/J.COMPEDU.2005.04.003;YANG YF, 2013, EDUC TECHNOL SOC, V16, P325;ZEDADRA A, 2015, EDUC TECHNOL SOC, V18, P276;ZEMEL A, 2007, LEARN INSTR, V17, P405, DOI 10.1016/J.LEARNINSTRUC.2007.03.006;ZHENG LQ, 2014, EDUC TECHNOL SOC, V17, P335;ZHU C, 2012, EDUC TECHNOL SOC, V15, P127