What I find more intriguing in this article is that whenever I click in the "Śūnyatā" reference link (by the end of the page) it moves to the column on the righ

What I find more intriguing in this article is that whenever I click in the "Śūnyatā" reference link (by the end of the page) it moves to the column on the right side. Would that be the same link or is it a new one?