| Continent | Nation/Country | No. of Authors/Country | No. of Papers/Country |
|---|---|---|---|
| Europe | Italy | 17 | 4 |
| Romania | 5 | 2 | |
| Belgium | 4 | 1 | |
| Portugal | 3 | 2 | |
| Hungary | 3 | 1 | |
| Czech Republic | 3 | 1 | |
| Middle East/Asia | Turkey | 2 | 1 |
| Iran | 2 | 1 | |
| Latin America | Brazil | 2 | 1 |
| Total No. of Nationalities | Total No. of Authors | ||
| 9 | 41 |