Update JuliaCon2023.md

Co-Authored-By: Claudio Moroni <43729990+ClaudMor@users.noreply.github.com>
Co-Authored-By: Pietro Monticone <38562595+pitmonticone@users.noreply.github.com>

Author: 3 people

paper/JuliaCon2023.md

@@ -18,7 +18,7 @@ Lightning talk (10 minutes)
 
 A multilayer graph is a graph consisting of multiple subgraphs called **layers** which can be interconnected through [bipartite graphs](https://en.wikipedia.org/wiki/Bipartite_graph) called **interlayers**. 
 
-Multiple theoretical frameworks have been proposed to formally subsume all instances of multilayer graphs ([De Domenico  et al. (2013)](https://doi.org/10.1103/physrevx.3.041022); [Kivelä et al. (2014)](https://doi.org/10.1093/comnet/cnu016); [Bianconi (2018)](https://doi.org/10.1093/oso/9780198753919.001.0001); [De Domenico (2022)](https://doi.org/10.1007/978-3-030-75718-2)). 
+Several theoretical frameworks have been proposed to formally subsume all instances of multilayer graphs ([De Domenico  et al. (2013)](https://doi.org/10.1103/physrevx.3.041022); [Kivelä et al. (2014)](https://doi.org/10.1093/comnet/cnu016); [Bianconi (2018)](https://doi.org/10.1093/oso/9780198753919.001.0001); [De Domenico (2022)](https://doi.org/10.1007/978-3-030-75718-2)). 
 
 Multilayer graphs have been adopted to model the structure and dynamics of a wide spectrum of high-dimensional, non-linear, multi-scale, time-dependent complex systems including physical, chemical, biological, neuronal, socio-technical, epidemiological, ecological and economic networks ([Cozzo et al. (2013)](https://doi.org/10.1103/physreve.88.050801); [Estrada and Gomez-Gardenes (2014)](https://doi.org/10.1103/physreve.89.042819); [Baggio et al. (2016)](https://doi.org/10.1073/pnas.1604401113); [DeDomenico et al. (2016)](https://doi.org/10.1038/nphys3865); [Amato et al. (2017)](https://doi.org/10.1038/s41598-017-06933-2); [DeDomenico (2017)](https://doi.org/10.1093/gigascience/gix004); [Timteo et al. (2018)](https://doi.org/10.1038/s41467-017-02658-y); [Aleta et al. (2020)](https://doi.org/10.1038/s41562-020-0931-9); [Aleta et al. (2022)](https://doi.org/10.1073/pnas.2112182119)).