'A robust SEI layer will prevent further electrolyte solvent reduction on the carbon electrode. However, at elevated temperature, the metastable species ROCO2Li within the SEI layer decomposes into more stable compounds –Li2CO3 and LiF, which distort the SEI layer and create a porous SEI structure that exposes the graphite surface to more electrolyte decomposition reaction [8,9].'
If I cite above paragraph directly, do I need to add 8 and 9 also as references?