4

New service development: a network perspective

Syson, Fiona, Perks, Helen
Journal:
Journal of Services Marketing
Year:
2004
Language:
english
File:
PDF, 220 KB
english, 2004
7

Strategic Alliances: Partner as Customer

Helen Perks, Geoff Easton
Journal:
Industrial Marketing Management
Year:
2000
Language:
english
File:
PDF, 66 KB
english, 2000
14

Co-Creation with Customers: An Evolving Innovation Research Field

Gemser, Gerda, Perks, Helen
Journal:
Journal of Product Innovation Management
Year:
2015
Language:
english
File:
PDF, 56 KB
english, 2015
17

Mixing rich and asynchronous communication for new service development performance

Storey, Chris, Perks, Helen
Journal:
R&D Management
Year:
2015
Language:
english
File:
PDF, 346 KB
english, 2015
19

Elevating design in the organization

Micheli, Pietro, Perks, Helen, Beverland, Michael B.
Journal:
Journal of Product Innovation Management
Year:
2017
Language:
english
File:
PDF, 1.07 MB
english, 2017
23

Toda lattice equation and Wronskians in the 2d Ising model

Helen Au-Yang, Jacques H.H. Perk
Journal:
Physica D: Nonlinear Phenomena
Year:
1986
Language:
english
File:
PDF, 110 KB
english, 1986
24

Some new results on exactly solvable models

Helen Au-Yang, Tobias M. Haas, Lee-Fen Ko, Jacques H.H. Perk
Journal:
Physica D: Nonlinear Phenomena
Year:
1986
Language:
english
File:
PDF, 130 KB
english, 1986
25

Ising correlations at the critical temperature

Helen Au-Yang, Jacques H.H. Perk
Journal:
Physics Letters A
Year:
1984
Language:
english
File:
PDF, 249 KB
english, 1984
27

Logarithmic singularities of Q-dependent susceptibility of 2-D Ising model

Xiang-Peng Kong, Helen Au-Yang, Jacques H.H. Perk
Journal:
Physics Letters A
Year:
1986
Language:
english
File:
PDF, 233 KB
english, 1986
30

Phase diagram in the generalized chiral clock models

Helen Au-Yang, Jacques H.H. Perk
Journal:
Physica A: Statistical Mechanics and its Applications
Year:
1996
Language:
english
File:
PDF, 1.33 MB
english, 1996
31

The chiral Potts models revisited

Helen Au-Yang, Jacques H. H. Perk
Journal:
Journal of Statistical Physics
Year:
1995
Language:
english
File:
PDF, 2.06 MB
english, 1995
33

Wavevector-Dependent Susceptibility inZ-Invariant Pentagrid Ising Model

Helen Au-Yang, Jacques H. H. Perk
Journal:
Journal of Statistical Physics
Year:
2007
Language:
english
File:
PDF, 773 KB
english, 2007
37

The large-N limits of the chiral Potts model

Helen Au-Yang, Jacques H.H. Perk
Journal:
Physica A: Statistical Mechanics and its Applications
Year:
1999
Language:
english
File:
PDF, 230 KB
english, 1999
38

Global network configuration for innovation: a study of international fibre innovation

Helen Perks, Richard Jeffery
Journal:
R&D Management
Year:
2006
Language:
english
File:
PDF, 187 KB
english, 2006
40

Baxter's Solution for the Free Energy of the Chiral Potts Model

Helen Au-Yang, Bai-Qi Jin, Jacques H. H. Perk
Journal:
Journal of Statistical Physics
Year:
2001
Language:
english
File:
PDF, 215 KB
english, 2001
41

Wavevector-Dependent Susceptibility in Quasiperiodic Ising Models

Helen Au-Yang, Bai-Qi Jin, Jacques H. H. Perk
Journal:
Journal of Statistical Physics
Year:
2001
Language:
english
File:
PDF, 509 KB
english, 2001
44

Quasicrystals—The impact of N.G. de Bruijn

Au-Yang, Helen, Perk, Jacques H.H.
Journal:
Indagationes Mathematicae
Year:
2013
Language:
english
File:
PDF, 837 KB
english, 2013
49

MULTICOMPONENT CHIRAL POTTS MODELS

AU-YANG, HELEN, PERK, JACQUES H. H.
Journal:
International Journal of Modern Physics A
Year:
1992
Language:
english
File:
PDF, 713 KB
english, 1992
50

NEW RESULTS FOR SUSCEPTIBILITIES IN PLANAR ISING MODELS

AU-YANG, HELEN, PERK, JACQUES H.H.
Journal:
International Journal of Modern Physics B
Year:
2002
Language:
english
File:
PDF, 150 KB
english, 2002