Short answers, pulled from the story.
On the Concept of Irony with Continual Reference to Socrates is Søren Kierkegaard's 1841 master's thesis. It examines Socratic irony through the portrayals of Socrates by Xenophon, Aristophanes, and Plato, and compares Socratic irony with nineteenth-century interpretations by philosophers including Fichte, Schlegel, and Hegel.
Kierkegaard argued that Aristophanes, in his comedy The Clouds, best grasped the intricacies of Socratic irony. He felt that Xenophon and Plato portrayed Socrates too seriously, missing the ironic dimension that was central to who Socrates was.
Kierkegaard completed On the Concept of Irony in 1841, after three years of extensive study on Socrates. He attended Schelling's Berlin Lectures of 1841 shortly after finishing the dissertation.
Part One of the thesis examines how Xenophon, Aristophanes, and Plato each portrayed Socrates, with Kierkegaard favoring Aristophanes' account. Part Two compares Socratic irony with contemporary nineteenth-century interpretations, including analyses of Fichte, Schlegel, and Hegel.
At least one English translation includes Kierkegaard's notes on Schelling's Berlin Lectures of 1841, which he attended shortly after completing his dissertation.
Kierkegaard examines three ancient sources on Socrates: the historian Xenophon, the comic playwright Aristophanes, and the philosopher Plato. He concludes that Aristophanes provided the most accurate representation of Socrates.