Solidarity as the Fruit of Communion: Ecclesia in America, 'Post-Liberation Theology,' and the Earth, Casarella, Peter J. , Communio, Spr, Volume 27, Number 1, p.98-123, (2000)

Solidarity as a Virtue and the Common Good, Bilgrien, Marie Vianney , Foundation Theology 2000: faculty essays for ministry professionals, Bristol, IN, p.1-18, (2000)

Solidarity: a principle, an attitude, a duty? or the virtue for an interdependent world?, Bilgrien, Marie Vianney , American university studies.; Series VII,; Theology and religion, Volume 204, New York, NY, p.ix, 278 p., (1999)

Solidarity: more than a Polish thing, Bilgrien, Marie Vianney , Review for Religious, Volume 56, p.566, (1997)

Solidarity--the newest virtue, Bilgrien, Marie Vianney , New Theology Review, Volume 10, p.82, (1997)

A Spirituality of Christian Solidarity: the Jesuit martyrs of El Salvador, Lassalle-Klein, Robert , The Way: Contempory Christian Spirituality, Jan, Volume 36, p.49-60, (1996)