Johansen, J. D. Sign structure and sign event in Saussure, Hjelmslev, and Peirce: Jorgen Dines Johansen. Peirce's doctrine of signs : theory, applications, and connections.(1996).

Johansen, Jorgen Dines. "Sign Structure and Sign Event in Saussure, Hjelmslev, and Peirce: Jorgen Dines Johansen." Peirce's Doctrine of Signs : Theory, Applications, and Connections.(1996) .

Johansen, Jorgen Dines. "Sign Structure and Sign Event in Saussure, Hjelmslev, and Peirce: Jorgen Dines Johansen." Peirce's Doctrine of Signs : Theory, Applications, and Connections.(1996), .