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. 2021 Mar 4;26(4):4401–4431. doi: 10.1007/s10639-021-10457-8

Table 2.

Document type

Document Type Total Publications (TP) Percentage (%)
Article 825 52.99
Conference Paper 521 33.46
Book Chapter 111 7.13
Review 43 2.76
Editorial 12 0.77
Note 11 0.71
Erratum 7 0.45
Letter 6 0.39
Book 5 0.32
Short Survey 1 0.06
Retracted 1 0.06
Undefined 14 0.90
Total 1557 100.00