| article html file updated | 5 February 2020 12:01 CET | Update | https://www.mdpi.com/1422-8599/2003/1/M310 |
| article html file updated | 9 May 2019 12:00 CEST | Update | - |
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| article html file updated | 26 September 2017 09:50 CEST | Update | - |
| article xml uploaded. | 26 September 2017 09:49 CEST | Update | https://www.mdpi.com/1422-8599/2003/1/M310/xml |
| article html file updated | 23 September 2017 09:01 CEST | Update | - |
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| article html file updated | 22 September 2017 08:37 CEST | Update | - |
| article xml uploaded. | 22 September 2017 08:36 CEST | Original file | - |
| article html file updated | 14 December 2016 09:02 CET | Original file | - |