ABDUSSELAM MS, 2020, TECHNOL PEDAGOG EDUC, V29, P407, DOI 10.1080/1475939X.2020.1766550;AGGARWAL R., P 9 INT C CLOUD COMP, P510, DOI 10.1109/CONFLUENCE.2019.8776989, DOI 10.1109/CONFLUENCE.2019.8776989;AKDENIZ C., 2016, INSTRUCTIONAL PROCES, P57;APPLIN S.A., 2021, J RESPONSIBLE TECHNO, V5, DOI 10.1016/J.JRT.2021.100010, DOI 10.1016/J.JRT.2021.100010;AZUMA RT, 1997, PRESENCE-VIRTUAL AUG, V6, P355, DOI 10.1162/PRES.1997.6.4.355;BAGDONIS A., 2014, EDUC TECHNOL, V34, P26;IBANEZ MB, 2020, COMPUT EDUC, V145, DOI 10.1016/J.COMPEDU.2019.103734;BOTTURI L., P 6 IEEE INT C ADV L, P1216;BOYLES B., 2017, VIRTUAL REALITY AUGM;BUJAK KR, 2013, COMPUT EDUC, V68, P536, DOI 10.1016/J.COMPEDU.2013.02.017;BYE K., 2019, P ACM SIGGRAPH 2019, P1, DOI 10.1145/3306212.3328138, DOI 10.1145/3306212.3328138;CAPRILE M., 2015, EUR PARL, DOI 10.2861/519030, DOI 10.2861/519030;CHEN CH, 2020, ETR&D-EDUC TECH RES, V68, P3057, DOI 10.1007/S11423-020-09834-W;CHEN L, 2019, RES PRACT TECH ENHAN, V14, DOI 10.1186/S41039-019-0119-Y;CHRISTOPOULOS ATHANASIOS, 2020, JOURNAL OF EDUCATIONAL TECHNOLOGY SYSTEMS, V49, P59, DOI 10.1177/0047239520908838;CHRISTOPOULOS A., 2018, INTEGRATING MULTIUSE, P259;CHRISTOPOULOS A, 2020, EDUC SCI, V10, DOI 10.3390/EDUCSCI10110317;CHRISTOPOULOS A, 2018, VIRTUAL REAL-LONDON, V22, P353, DOI 10.1007/S10055-017-0330-3;DUNSER A, 2011, HANDBOOK OF AUGMENTED REALITY, P289, DOI 10.1007/978-1-4614-0064-6_13;EGGER J, 2020, COMPUT IND ENG, V140, DOI 10.1016/J.CIE.2019.106195;ELMQADDEM N, 2019, INT J EMERG TECHNOL, V14, P234, DOI 10.3991/IJET.V14I03.9289;FRANCISTI J, 2019, ADV INTELL SYST, V924, P687, DOI 10.1007/978-981-13-6861-5_58;GASEVIC D, 2015, TECHTRENDS, V59, P64, DOI 10.1007/S11528-014-0822-X;GIANNAKOS M., 2020, NONFORMAL INFORMAL S, P117, DOI 10.1007/978-981-15-6747-6_7, DOI 10.1007/978-981-15-6747-6_7;GRAY CM, 2016, ETR&D-EDUC TECH RES, V64, P969, DOI 10.1007/S11423-016-9478-X;GUTIERREZ F, 2020, COMPUT HUM BEHAV, V107, DOI 10.1016/J.CHB.2018.12.004;HARLEY JM, 2020, LEARN INSTR, V70, DOI 10.1016/J.LEARNINSTRUC.2018.09.001;HERODOTOU C, 2020, J LEARN ANAL, V7, P72, DOI 10.18608/JLA.2020.72.4;HOFMANN B, 2017, SCI ENG ETHICS, V23, P701, DOI 10.1007/S11948-016-9792-Z;KAZANIDIS I, 2021, MULTIMODAL TECHNOLOG, V5, DOI 10.3390/MTI5030009;KAZANIDIS I, 2019, J UNIVERS COMPUT SCI, V25, P489;KELLEY TR, 2016, INT J STEM EDUC, V3, DOI 10.1186/S40594-016-0046-Z;KICKMEIER-RUST MICHAEL D., 2013, HUMAN-COMPUTER INTERACTION AND KNOWLEDGE DISCOVERY IN COMPLEX, UNSTRUCTURED, BIG DATA. THIRD INTERNATIONAL WORKSHOP, HCI-KDD 2013. HELD AT SOUTHCHI 2013. PROCEEDINGS: LNCS 7947, P358, DOI 10.1007/978-3-642-39146-0_34;KLAMMA RALF, 2019, LEARNING AND COLLABORATION TECHNOLOGIES. UBIQUITOUS AND VIRTUAL ENVIRONMENTS FOR LEARNING AND COLLABORATION. 6TH INTERNATIONAL CONFERENCE, LCT 2019 HELD AS PART OF THE 21ST HCI INTERNATIONAL CONFERENCE, HCII 2019. PROCEEDINGS: LECTURE NOTES IN COMPUTER SCIENCE (LNCS 11591), P162, DOI 10.1007/978-3-030-21817-1_13;KOREN I., 2017, IMMERSIVE LEARNING R, P142;LIMBU B., 2018, MOBILE UBIQUITOUS LE, P157, DOI 10.1007/978-981-10-6144-8_10, DOI 10.1007/978-981-10-6144-8_10;LIN PH, 2020, IEEE ACCESS, V8, P45689, DOI 10.1109/ACCESS.2020.2977679;MADARY M, 2016, FRONT ROBOT AI, V3, DOI 10.3389/FROBT.2016.00003;MANGAROSKA K, 2021, IEEE T LEARN TECHNOL, V14, P173, DOI 10.1109/TLT.2021.3072159;MARRIOTT K., 2018, IMMERSIVE ANAL;MILLER MR, 2020, SCI REP-UK, V10, DOI 10.1038/S41598-020-74486-Y;MONROY C., 2014, J LEARNING ANAL, V1, P94, DOI DOI 10.18608/JLA.2014.12.6;MOORE A, 2020, INT J GEOGR INF SCI, V34, P229, DOI 10.1080/13658816.2019.1656810;MYSTAKIDIS S, 2021, EDUC INF TECHNOL, DOI 10.1007/S10639-021-10682-1;NADEEM M, 2020, EDUC SCI, V10, DOI 10.3390/EDUCSCI10110316;NOGHABAEI M, 2020, DATA, V5, DOI 10.3390/DATA5010026;OK MW, 2021, READ WRIT Q, V37, P101, DOI 10.1080/10573569.2020.1723152;PELLAS NIKOLAOS, 2019, VIRTUAL REALITY, V23, P329, DOI 10.1007/S10055-018-0347-2;PELLAS N, 2021, VIRTUAL REAL-LONDON, V25, P835, DOI 10.1007/S10055-020-00489-9;PELLAS N, 2020, EDUC INF TECHNOL, V25, P2481, DOI 10.1007/S10639-019-10076-4;PRIEMER B, 2020, RES SCI TECHNOL EDUC, V38, P105, DOI 10.1080/02635143.2019.1600490;ROBAK MICHAEL J., 2015, COMPUTERS IN LIBRARIES, V35, P12;ROMERO C, 2020, WIRES DATA MIN KNOWL, V10, DOI 10.1002/WIDM.1355;SAARILUOMA P., 2016, DESIGNING LIFE, P171, DOI 10.1057/978-1-137-53047-9_6, DOI 10.1057/978-1-137-53047-9_6;SAHLBERG P., 2021, FINNISH LESSONS 3 0;SANTAMARIA-BONFIL G, 2020, COMPUT EDUC, V151, DOI 10.1016/J.COMPEDU.2020.103871;SECRETAN J., P 2019 IEEE INT C EN, P1;SILVER, 2020, FRONTIERS VIRTUAL RE, DOI 10.3389/FRVIR.2020.00001, DOI 10.3389/FRVIR.2020.00001;SIRAKAYA M, 2020, INTERACT LEARN ENVIR, DOI 10.1080/10494820.2020.1722713;SO HJ, 2020, ASIA-PAC EDUC RES, V29, P1, DOI 10.1007/S40299-019-00494-W;STEELE PATRICIA, 2020, JOURNAL OF EDUCATIONAL TECHNOLOGY SYSTEMS, V49, P219, DOI 10.1177/0047239520933858;TORRES-RUIZ M, 2020, VIRTUAL REAL-LONDON, V24, P175, DOI 10.1007/S10055-018-0366-Z;TZIMAS D, 2021, ETR&D-EDUC TECH RES, V69, P1101, DOI 10.1007/S11423-021-09977-4;WEN Y, 2021, ETR&D-EDUC TECH RES, V69, P843, DOI 10.1007/S11423-020-09893-Z;WOZNIAK MP, 2020, CHI'20: EXTENDED ABSTRACTS OF THE 2020 CHI CONFERENCE ON HUMAN FACTORS IN COMPUTING SYSTEMS, DOI 10.1145/3334480.3381441;XIE H, 2019, COMPUT EDUC, V140, DOI 10.1016/J.COMPEDU.2019.103599;YILMAZ RM, 2017, VIRTUAL REAL-LONDON, V21, P75, DOI 10.1007/S10055-016-0300-1;YUSTE R, 2017, NATURE, V551, P159, DOI 10.1038/551159A;ZHANG L, 2020, EDUC RES REV-NETH, V31, DOI 10.1016/J.EDUREV.2020.100339;ZHENG R.Z., 2020, COGNITIVE AFFECTIVE, P107;ZHU EGUI, 2015, JMIR MED EDUC, V1, PE10