PETKOV, Pavel Penchev.
 Omicron Waves in Few European Countries till June 2022 Modeled by a New Version of a Tracking Approach with Successive and Superimposed Waves.
<strong>Medical Research Archives</strong>, [S.l.], v. 11, n. 7.1, july 2023.
ISSN 2375-1924.
Available at: &lt;<a href="https://esmed.org/MRA/mra/article/view/4080" target="_new">https://esmed.org/MRA/mra/article/view/4080</a>&gt;. Date accessed: 03 july 2024.
doi: <a href="https://doi.org/10.18103/mra.v11i7.1.4080">https://doi.org/10.18103/mra.v11i7.1.4080</a>.