ताभ्यां पार्श्वाभिगातौ व्याख्यातौ ॥ कZ_१०.३.०९ ॥
tābhyāṃ pārśvābhigātau vyākhyātau
By these two methods, flank attacks are also explained.
He abstracts a rule-set: principles stated for front/rear apply analogously to flank engagements.