I want to send an article to a Springer journal, but I have problem in understanding the referencing style of the journal. Here is an example of a citation in previous articles of this journal:
Li, Z., Huang, Y., Liu, G., et al.: Challenges, designs, and performances of large-scale open-P2SP content distribution. IEEE Trans. Parallel Distrib. Syst. 24(11), 2181–2191 (2013)
Which style is this? It is not similar to Harvard, Vancouver etc.