by Boss, R., Baumgartner, A., Kroos, S., Blattner, M., Fretz, R., Moor, D.
Published in Journal of applied microbiology (01.10.2018)

by Purkey, William W, Novak, John M, Fretz, Joan R
Published in Teachers College Press (13.11.2020)

by Fretz, R., Schaeren, W., Tanner, M., Baumgartner, A.
Published in International journal of food microbiology (30.05.2007)

by Fretz, R, Sagel, U, Ruppitsch, W, Pietzka, At, Stoger, A, Huhulescu, S, Heuberger, S, Pichler, J, Much, P, Pfaff, G, Stark, K, Prager, R, Flieger, A, Feenstra, O, Allerberger, F
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (04.02.2010)

by Breitenmoser, A, Fretz, R, Schmid, J, Besl, A, Etter, R
Published in Journal of water and health (01.09.2011)

by FRETZ, R, SVOBODA, P, SCHORR, D, TANNER, M, BAUMGARTNER, A
Published in European journal of clinical microbiology & infectious diseases (01.04.2005)

by Schmid, D, Fretz, R, Buchner, G, König, C, Perner, H, Sollak, R, Tratter, A, Hell, M, Maass, M, Strasser, M, Allerberger, F
Published in European journal of clinical microbiology & infectious diseases (01.04.2009)

by FRETZ, R., SVOBODA, P., LÜTHI, T. M., TANNER, M., BAUMGARTNER, A.
Published in Epidemiology and infection (01.06.2005)

by Ruppitsch, W, Stoger, A, Schmid, D, Fretz, R, Indra, A, Allerberger, F, Witte, W
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (25.10.2007)

by Fretz, R, Schmid, D, Brueller, W, Girsch, L, Pichler, A.M, Riediger, K, Safer, M, Allerberger, F
Published in International journal of infectious diseases (01.11.2007)

by SCHMID, D, FRETZ, R, ALLERBERGER, F, KUO, H-W, RUMETSHOFER, R, MEUSBURGER, S, MAGNET, E, HÜRBE, G, INDRA, A, RUPPITSCH, W, PIETZKA, A. T
Published in The international journal of tuberculosis and lung disease (01.10.2008)

by FRETZ, R, HERRMANN, L, CHRISTEN, A, SVOBODA, P, DUBUIS, O, VIOLLIER, E. H, TANNER, M, BAUMGARTNER, A
Published in European journal of clinical microbiology & infectious diseases (01.03.2005)

by FRETZ, R, SCHMID, H, KAYSER, U, SVOBODA, P, TANNER, M, BAUMGARTNER, A
Published in European journal of clinical microbiology & infectious diseases (01.10.2003)

by FRETZ, R., SVOBODA, P., RYAN, U. M., THOMPSON, R. C. A., TANNER, M., BAUMGARTNER, A.
Published in Epidemiology and infection (01.08.2003)

by Fretz, Bruce R.
Published in The Counseling psychologist (01.01.1999)

by Keating, Alan M, Fretz, Bruce R
Published in Journal of counseling psychology (01.07.1990)

by Jaschik, Mollie L, Fretz, Bruce R
Published in Sex roles (01.07.1991)

by Fretz, Joan R.
Published in Journal of invitational theory and practice (06.12.2021)

by Fretz, Rainer, Negro, Francesco, Bruggmann, Philip, Lavanchy, Daniel, De Gottardi, Andrea, Pache, Isabelle, Masserey Spicher, Virginie, Cerny, Andreas
Published in Swiss medical weekly (17.05.2013)

by Fretz, R, Pichler, J, Sagel, U, Much, P, Ruppitsch, W, Pietzka, A T, Stöger, A, Huhulescu, S, Heuberger, S, Appl, G, Werber, D, Stark, K, Prager, R, Flieger, A, Karpísková, R, Pfaff, G, Allerberger, F
Published in Euro surveillance : bulletin européen sur les maladies transmissibles (22.04.2010)