| article html file updated | 14 August 2026 15:07 CEST | Update | https://www.mdpi.com/2076-3298/4/2/42 |
| article html file updated | 8 February 2020 08:11 CET | Update | N/A |
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| article pdf uploaded. | 20 June 2017 11:12 CEST | Updated version of record | https://www.mdpi.com/2076-3298/4/2/42/pdf |
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