Tymieniecka, A. Phenomenology Reflects upon Itself. II: The Ideal of the Universal Science: the Original Project of Husserl Reinterpreted with Reference to the Acquisitions of Phenomenology and the Progress of Contemporary Science: Anna-Teresa Tymieniecka. The later Husserl and the idea of phenomenology : idealism - realism, historicity and nature ; papers and debate of the International Phenomenological Conference, held at the University of Waterloo, Canada, April 9 - 14, 1969.(1972).

Tymieniecka, Anna-Teresa. "Phenomenology Reflects upon Itself. II: The Ideal of the Universal Science: The Original Project of Husserl Reinterpreted with Reference to the Acquisitions of Phenomenology and the Progress of Contemporary Science: Anna-Teresa Tymieniecka." The Later Husserl and the Idea of Phenomenology : Idealism - Realism, Historicity and Nature ; Papers and Debate of the International Phenomenological Conference, Held at the University of Waterloo, Canada, April 9 - 14, 1969.(1972) .

Tymieniecka, Anna-Teresa. "Phenomenology Reflects upon Itself. II: The Ideal of the Universal Science: The Original Project of Husserl Reinterpreted with Reference to the Acquisitions of Phenomenology and the Progress of Contemporary Science: Anna-Teresa Tymieniecka." The Later Husserl and the Idea of Phenomenology : Idealism - Realism, Historicity and Nature ; Papers and Debate of the International Phenomenological Conference, Held at the University of Waterloo, Canada, April 9 - 14, 1969.(1972), .